diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 5fdd2d4d..14183a63 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Change Log
 
-## [0.3](https://github.com/formatc1702/WireViz/tree/v0.3) (202X-XX-XX)
+## [0.3](https://github.com/formatc1702/WireViz/tree/v0.3) (2021-10-11)
 
 ### New features
 
@@ -9,15 +9,26 @@
 - Add support for length units in cables and wires ([#7](https://github.com/formatc1702/WireViz/issues/7), [#196](https://github.com/formatc1702/WireViz/pull/196) (with work from [#161](https://github.com/formatc1702/WireViz/pull/161), [#162](https://github.com/formatc1702/WireViz/pull/162), [#171](https://github.com/formatc1702/WireViz/pull/171)), [#198](https://github.com/formatc1702/WireViz/pull/198), [#205](https://github.com/formatc1702/WireViz/issues/205). [#206](https://github.com/formatc1702/WireViz/pull/206))
 - Add option to define connector pin colors ([#53](https://github.com/formatc1702/WireViz/issues/53), [#141](https://github.com/formatc1702/WireViz/pull/141))
 - Remove HTML links from the input attributes ([#164](https://github.com/formatc1702/WireViz/pull/164))
+- Add harness metadata section ([#158](https://github.com/formatc1702/WireViz/issues/158), [#214](https://github.com/formatc1702/WireViz/pull/214))
+- Add support for supplier and supplier part number information ([#240](https://github.com/formatc1702/WireViz/issues/240), [#241](https://github.com/formatc1702/WireViz/pull/241/))
+- Add graph rendering options (colors, font, color name display style, ...) ([#158](https://github.com/formatc1702/WireViz/issues/158), [#214](https://github.com/formatc1702/WireViz/pull/214))
+- Add support for background colors for cables and connectors, as well as for some individual cells ([#210](https://github.com/formatc1702/WireViz/issues/210), [#219](https://github.com/formatc1702/WireViz/pull/219))
+- Add optional tweaking of the .gv output ([#215](https://github.com/formatc1702/WireViz/pull/215)) (experimental)
 
 
 ## Misc. fixes
 
+- Remove case-sensitivity issues with pin names and labels ([#160](https://github.com/formatc1702/WireViz/issues/160), [#229](https://github.com/formatc1702/WireViz/pull/229))
 - Improve type hinting ([#156](https://github.com/formatc1702/WireViz/issues/156), [#163](https://github.com/formatc1702/WireViz/pull/163))
 - Move BOM management and HTML functions to separate modules ([#151](https://github.com/formatc1702/WireViz/issues/151), [#192](https://github.com/formatc1702/WireViz/pull/192))
 - Simplify BOM code ([#197](https://github.com/formatc1702/WireViz/pull/197))
 - Bug fixes ([#218](https://github.com/formatc1702/WireViz/pull/218), [#221](https://github.com/formatc1702/WireViz/pull/221))
 
+## Known issues
+
+- Including images in the harness may lead to issues in the following cases: ([#189](https://github.com/formatc1702/WireViz/pull/189), [#220](https://github.com/formatc1702/WireViz/issues/220))
+  - When using the `-o`/`--output_file` CLI option, specifying an output path in a different directory from the input file
+  - When using the `--prepend-file` CLI option, specifying a prepend file in a different directory from the mail input file
 
 ## [0.2](https://github.com/formatc1702/WireViz/tree/v0.2) (2020-10-17)
 
diff --git a/docs/syntax.md b/docs/syntax.md
index 4a7a52ac..8da04aee 100644
--- a/docs/syntax.md
+++ b/docs/syntax.md
@@ -3,12 +3,6 @@
 ## Main sections
 
 ```yaml
-metadata:  # dictionary of meta-information describing the harness
-  <key>   : <value>  # any number of key value pairs (see below)
-  ...
-options:  # dictionary of common attributes for the whole harness
-  <str>   : <value>  # optional harness attributes (see below)
-  ...
 connectors:  # dictionary of all used connectors
   <str>   :    # unique connector designator/name
     ...          # connector attributes (see below)
@@ -35,57 +29,17 @@ additional_bom_items:  # custom items to add to BOM
   - <bom-item>           # BOM item (see below)
   ...
 
-```
-
-## Metadata entries
-
-```yaml
-  # Meta-information describing the harness
-
-  # Each key/value pair replaces all key references in
-  # the HTML output template with the belonging value.
-  # Typical keys are 'title', 'description', and 'notes',
-  # but any key is accepted. Unused keys are ignored.
-  <key>   : <value>  # Any valid YAML syntax is accepted
-  # If no value is specified for 'title', then the
-  # output filename without extension is used.
-```
-
-## Options
-
-```yaml
-  # Common attributes for the whole harness.
-  # All entries are optional and have default values.
-
-  # Background color of diagram and HTML output
-  bgcolor: <color>             # Default = 'WH'
-
-  # Background color of other diagram elements
-  bgcolor_node: <color>        # Default = 'WH'
-  bgcolor_connector: <color>   # Default = bgcolor_node
-  bgcolor_cable: <color>       # Default = bgcolor_node
-  bgcolor_bundle: <color>      # Default = bgcolor_cable
-
-  # How to display colors as text in the diagram
-  # 'full' : Lowercase full color name
-  # 'FULL' : Uppercase full color name
-  # 'hex'  : Lowercase hexadecimal values
-  # 'HEX'  : Uppercase hexadecimal values
-  # 'short': Lowercase short color name
-  # 'SHORT': Uppercase short color name
-  # 'ger'  : Lowercase short German color name
-  # 'GER'  : Uppercase short German color name
-  color_mode: <str>            # Default = 'SHORT'
+metadata:  # dictionary of meta-information describing the harness
+  <key>   : <value>  # any number of key value pairs (see below)
+  ...
 
-  # Fontname to use in diagram and HTML output
-  fontname: <str>              # Default = 'arial'
+options:  # dictionary of common attributes for the whole harness
+  <str>   : <value>  # optional harness attributes (see below)
+  ...
 
-  # If True, show only a BOM entry reference together with basic info
-  # about additional components inside the diagram node (connector/cable box).
-  # If False, show all info about additional components inside the diagram node.
-  mini_bom_mode: <bool>        # Default = True
+tweak:  # optional tweaking of .gv output
+  ...
 ```
-
 ## Connector attributes
 
 ```yaml
@@ -100,8 +54,10 @@ additional_bom_items:  # custom items to add to BOM
   # product information (all optional)
   ignore_in_bom: <bool>  # if set to true the connector is not added to the BOM
   pn: <str>              # [internal] part number
-  mpn: <str>             # manufacturer part number
   manufacturer: <str>    # manufacturer name
+  mpn: <str>             # manufacturer part number
+  supplier: <str>        # supplier name
+  spn: <str>             # supplier part number
   additional_components: # additional components
     - <additional-component> # additional component (see below)
 
@@ -117,6 +73,8 @@ additional_bom_items:  # custom items to add to BOM
                      # no color marks will be added to remaining pins
 
   # rendering information (all optional)
+  bgcolor: <color>       # Background color of diagram connector box
+  bgcolor_title: <color> # Background color of title in diagram connector box
   style: <style>         # may be set to simple for single pin connectors
   show_name: <bool>      # defaults to true for regular connectors,
                          # false for simple connectors
@@ -161,11 +119,15 @@ Since the auto-incremented and auto-assigned designator is not known to the user
                           #                  but unavailable for auto-conversion
   show_equiv: <bool>      # defaults to false; can auto-convert between mm2 and AWG
                           # and display the result when set to true
-  length: <int/float>     # is assumed to be in meters
-  shield: <bool/color>    # defaults to false
-                          # setting to true will display the shield as a thin black line
-                          # using a color (see below) will render the shield in that color
-                          # using 's' as the wire number
+  length: <int/float>[ <unit>]  # <int/float> is assumed to be in meters unless <unit> is specified
+                                # e.g. length: 2.5 -> assumed to be 2.5 m
+                                # or   length: 2.5 ft -> "ft" is used as the unit
+                                # Units are not converted during BOM generation;
+                                # different units result in separate BOM entries.
+  shield: <bool/color>  # defaults to false
+                        # setting to true will display the shield as a thin black line
+                        # using a color (see below) will render the shield in that color
+                        # A shield can be accessed by using 's' as the wire ID
   color: <color>  # see below
   image: <image>  # see below
   notes: <str>   
@@ -173,8 +135,10 @@ Since the auto-incremented and auto-assigned designator is not known to the user
   # product information (all optional)
   ignore_in_bom: <bool>  # if set to true the cable or wires are not added to the BOM
   pn: <str>              # [internal] part number
-  mpn: <str>             # manufacturer part number
   manufacturer: <str>    # manufacturer name
+  mpn: <str>             # manufacturer part number
+  supplier: <str>        # supplier name
+  spn: <str>             # supplier part number
   additional_components: # additional components
     - <additional-component> # additional component (see below)
 
@@ -192,6 +156,8 @@ Since the auto-incremented and auto-assigned designator is not known to the user
   wirelabels: <List>  # optional; one label for each wire
 
   # rendering information (all optional)
+  bgcolor: <color>          # Background color of diagram cable box
+  bgcolor_title: <color>    # Background color of title in diagram cable box
   show_name: <bool>         # defaults to true
   show_wirecount: <bool>    # defaults to true
   show_wirenumbers: <bool>  # defaults to true for cables; false for bundles
@@ -284,6 +250,56 @@ For connectors with `autogenerate: true`, a new instance, with auto-generated de
   - `<str>` to refer to a wire's label or color, if unambiguous.
 
 
+
+## Metadata entries
+
+```yaml
+  # Meta-information describing the harness
+
+  # Each key/value pair replaces all key references in
+  # the HTML output template with the belonging value.
+  # Typical keys are 'title', 'description', and 'notes',
+  # but any key is accepted. Unused keys are ignored.
+  <key>   : <value>  # Any valid YAML syntax is accepted
+  # If no value is specified for 'title', then the
+  # output filename without extension is used.
+```
+
+## Options
+
+```yaml
+  # Common attributes for the whole harness.
+  # All entries are optional and have default values.
+
+  # Background color of diagram and HTML output
+  bgcolor: <color>             # Default = 'WH'
+
+  # Background color of other diagram elements
+  bgcolor_node: <color>        # Default = 'WH'
+  bgcolor_connector: <color>   # Default = bgcolor_node
+  bgcolor_cable: <color>       # Default = bgcolor_node
+  bgcolor_bundle: <color>      # Default = bgcolor_cable
+
+  # How to display colors as text in the diagram
+  # 'full' : Lowercase full color name
+  # 'FULL' : Uppercase full color name
+  # 'hex'  : Lowercase hexadecimal values
+  # 'HEX'  : Uppercase hexadecimal values
+  # 'short': Lowercase short color name
+  # 'SHORT': Uppercase short color name
+  # 'ger'  : Lowercase short German color name
+  # 'GER'  : Uppercase short German color name
+  color_mode: <str>            # Default = 'SHORT'
+
+  # Fontname to use in diagram and HTML output
+  fontname: <str>              # Default = 'arial'
+
+  # If True, show only a BOM entry reference together with basic info
+  # about additional components inside the diagram node (connector/cable box).
+  # If False, show all info about additional components inside the diagram node.
+  mini_bom_mode: <bool>        # Default = True
+```
+
 ## BOM items and additional components
 
 Connectors (both regular, and auto-generated), cables, and wires of a bundle are automatically added to the BOM,
@@ -309,8 +325,11 @@ Parts can be added to a connector or cable in the section `<additional-component
                   # total_length     sum of lengths of each wire in the bundle
   unit: <str>
   pn: <str>            # [internal] part number
-  mpn: <str>           # manufacturer part number
   manufacturer: <str>  # manufacturer name  
+  mpn: <str>           # manufacturer part number
+  supplier: <str>      # supplier name  
+  spn: <str>           # supplier part number
+  bgcolor: <color>     # Background color of entry in diagram component box
 ```
 
 Alternatively items can be added to just the BOM by putting them in the section `<bom-item>` above.
@@ -323,8 +342,35 @@ Alternatively items can be added to just the BOM by putting them in the section
   unit: <str>   
   designators: <List>
   pn: <str>            # [internal] part number
-  mpn: <str>           # manufacturer part number
   manufacturer: <str>  # manufacturer name  
+  mpn: <str>           # manufacturer part number
+  supplier: <str>      # supplier name  
+  spn: <str>           # supplier part number
+```
+
+## GraphViz tweaking (experimental)
+
+```yaml
+  # Optional tweaking of the .gv output.
+  # This feature is experimental and might change
+  # or be removed in future versions.
+
+  override:  # dict of .gv entries to override
+    # Each entry is identified by its leading string
+    # in lines beginning with a TAB character.
+    # The leading string might be in "quotes" in
+    # the .gv output. This leading string must be
+    # followed by attributes in [square brackets].
+    # Entries with an attribute containing HTML are
+    # not supported.
+    <str>:  # leading string of .gv entry
+      <str> : <str/null>  # attribute and its new value
+      # Any number of attributes can be overridden
+      # for each entry. Attributes not already existing
+      # in the entry will be appended to the entry.
+      # Use null as new value to delete an attribute.
+
+  append: <str/list> # string or list of strings to append to the .gv output
 ```
 
 ## Colors
@@ -359,6 +405,9 @@ The following colors are understood:
 <!-- color list generated with a helper script: -->
 <!-- https://gist.github.com/formatc1702/3c93fb4c5e392364899283f78672b952 -->
 
+It is also possible to specify colors as hexadecimal RGB values, e.g. `#112233` or `#FFFF00:#009900`.
+Remember quoting strings containing a `#` in the YAML file.
+
 ## Cable color codes
 
 Supported color codes:
@@ -385,6 +434,7 @@ image:
   src: <path>        # path to the image file
   # optional parameters:
   caption: <str>     # text to display below the image
+  bgcolor: <color>   # Background color of entry in diagram component box
   width: <int>       # range: 1~65535; unit: points
   height: <int>      # range: 1~65535; unit: points
   # if only one dimension (width/height) is specified, the image is scaled proportionally.
@@ -402,7 +452,10 @@ The following attributes accept multiline strings:
 - `notes`
 - `manufacturer`
 - `mpn`
+- `supplier`
+- `spn`
 - `image.caption`
+- `tweak.append`
 
 ### Method 1
 
diff --git a/examples/demo01.bom.tsv b/examples/demo01.bom.tsv
index d7534107..39f82ac5 100644
--- a/examples/demo01.bom.tsv
+++ b/examples/demo01.bom.tsv
@@ -1,4 +1,4 @@
-Item	Qty	Unit	Designators
-Connector, D-Sub, female, 9 pins	1		X1
-Connector, Molex KK 254, female, 3 pins	1		X2
-Cable, 3 x 0.25 mm² shielded	0.2	m	W1
+Id	Description	Qty	Unit	Designators
+1	Cable, 3 x 0.25 mm² shielded	0.2	m	W1
+2	Connector, D-Sub, female, 9 pins	1		X1
+3	Connector, Molex KK 254, female, 3 pins	1		X2
diff --git a/examples/demo01.gv b/examples/demo01.gv
index ed4fa671..49261168 100644
--- a/examples/demo01.gv
+++ b/examples/demo01.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -59,7 +59,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -91,7 +91,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ffffff:#000000"]
 	X1:p5r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -122,9 +122,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:5</td>
-    <td>WH</td>
-    <td>X2:1</td>
+    <td>X1:5:GND</td>
+    <td>
+     1:WH
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -136,9 +138,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>BN</td>
-    <td>X2:3</td>
+    <td>X1:2:RX</td>
+    <td>
+     2:BN
+    </td>
+    <td>X2:3:TX</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -150,9 +154,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>GN</td>
-    <td>X2:2</td>
+    <td>X1:3:TX</td>
+    <td>
+     3:GN
+    </td>
+    <td>X2:2:RX</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -165,7 +171,7 @@ graph {
    </tr>
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:5</td>
+    <td>X1:5:GND</td>
     <td>Shield</td>
     <td><!-- s_out --></td>
    </tr>
@@ -174,5 +180,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 }
diff --git a/examples/demo01.html b/examples/demo01.html
index 383052f8..f192c77d 100644
--- a/examples/demo01.html
+++ b/examples/demo01.html
@@ -1,177 +1,210 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
- <title>WireViz Diagram and BOM</title>
-</head><body style="font-family:Arial">
-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>demo01</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>demo01</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
  -->
 <!-- Pages: 1 -->
-<svg width="777pt" height="291pt"
- viewBox="0.00 0.00 777.00 291.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<svg width="833pt" height="291pt"
+ viewBox="0.00 0.00 833.00 291.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
 <g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 287)">
-<polygon fill="white" stroke="transparent" points="-4,4 -4,-287 773,-287 773,4 -4,4"/>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-287 829,-287 829,4 -4,4"/>
 <!-- X1 -->
 <g id="node1" class="node">
 <title>X1</title>
-<polygon fill="white" stroke="transparent" points="136,-253 0,-253 0,0 136,0 136,-253"/>
-<polygon fill="none" stroke="black" points="0,-229.5 0,-252.5 136,-252.5 136,-229.5 0,-229.5"/>
-<text text-anchor="start" x="59.5" y="-237.3" font-family="arial" font-size="14.00">X1</text>
-<polygon fill="none" stroke="black" points="0,-206.5 0,-229.5 47,-229.5 47,-206.5 0,-206.5"/>
-<text text-anchor="start" x="4" y="-214.3" font-family="arial" font-size="14.00">D&#45;Sub</text>
-<polygon fill="none" stroke="black" points="47,-206.5 47,-229.5 97,-229.5 97,-206.5 47,-206.5"/>
-<text text-anchor="start" x="51" y="-214.3" font-family="arial" font-size="14.00">female</text>
-<polygon fill="none" stroke="black" points="97,-206.5 97,-229.5 136,-229.5 136,-206.5 97,-206.5"/>
-<text text-anchor="start" x="101" y="-214.3" font-family="arial" font-size="14.00">9&#45;pin</text>
-<polygon fill="none" stroke="black" points="0,-183.5 0,-206.5 80,-206.5 80,-183.5 0,-183.5"/>
-<text text-anchor="start" x="25" y="-191.3" font-family="arial" font-size="14.00">DCD</text>
-<polygon fill="none" stroke="black" points="80,-183.5 80,-206.5 136,-206.5 136,-183.5 80,-183.5"/>
-<text text-anchor="start" x="104" y="-191.3" font-family="arial" font-size="14.00">1</text>
-<polygon fill="none" stroke="black" points="0,-160.5 0,-183.5 80,-183.5 80,-160.5 0,-160.5"/>
-<text text-anchor="start" x="30.5" y="-168.3" font-family="arial" font-size="14.00">RX</text>
-<polygon fill="none" stroke="black" points="80,-160.5 80,-183.5 136,-183.5 136,-160.5 80,-160.5"/>
-<text text-anchor="start" x="104" y="-168.3" font-family="arial" font-size="14.00">2</text>
-<polygon fill="none" stroke="black" points="0,-137.5 0,-160.5 80,-160.5 80,-137.5 0,-137.5"/>
-<text text-anchor="start" x="31" y="-145.3" font-family="arial" font-size="14.00">TX</text>
-<polygon fill="none" stroke="black" points="80,-137.5 80,-160.5 136,-160.5 136,-137.5 80,-137.5"/>
-<text text-anchor="start" x="104" y="-145.3" font-family="arial" font-size="14.00">3</text>
-<polygon fill="none" stroke="black" points="0,-114.5 0,-137.5 80,-137.5 80,-114.5 0,-114.5"/>
-<text text-anchor="start" x="26" y="-122.3" font-family="arial" font-size="14.00">DTR</text>
-<polygon fill="none" stroke="black" points="80,-114.5 80,-137.5 136,-137.5 136,-114.5 80,-114.5"/>
-<text text-anchor="start" x="104" y="-122.3" font-family="arial" font-size="14.00">4</text>
-<polygon fill="none" stroke="black" points="0,-91.5 0,-114.5 80,-114.5 80,-91.5 0,-91.5"/>
-<text text-anchor="start" x="24.5" y="-99.3" font-family="arial" font-size="14.00">GND</text>
-<polygon fill="none" stroke="black" points="80,-91.5 80,-114.5 136,-114.5 136,-91.5 80,-91.5"/>
-<text text-anchor="start" x="104" y="-99.3" font-family="arial" font-size="14.00">5</text>
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-<text text-anchor="start" x="25.5" y="-76.3" font-family="arial" font-size="14.00">DSR</text>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M139,-102.5C203,-102.5 219,-103.5 283,-103.5"/>
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 <g id="node2" class="node">
 <title>X2</title>
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diff --git a/examples/demo02.bom.tsv b/examples/demo02.bom.tsv
index c71ca775..cebaa360 100644
--- a/examples/demo02.bom.tsv
+++ b/examples/demo02.bom.tsv
@@ -1,13 +1,13 @@
-Item	Qty	Unit	Designators
-Connector, Crimp ferrule, 0.25 mm², YE	2		
-Connector, Molex KK 254, female, 4 pins	2		X2, X3
-Connector, Molex KK 254, female, 5 pins	1		X4
-Connector, Molex KK 254, female, 8 pins	1		X1
-Cable, 2 x 0.25 mm²	0.3	m	W4
-Wire, 0.14 mm², BK	0.9	m	W1, W2, W3
-Wire, 0.14 mm², BU	0.3	m	W3
-Wire, 0.14 mm², GN	0.6	m	W1, W2
-Wire, 0.14 mm², OG	0.3	m	W3
-Wire, 0.14 mm², RD	0.6	m	W1, W2
-Wire, 0.14 mm², VT	0.3	m	W3
-Wire, 0.14 mm², YE	0.6	m	W1, W2
+Id	Description	Qty	Unit	Designators
+1	Cable, 2 x 0.25 mm²	0.3	m	W4
+2	Connector, Crimp ferrule, 0.25 mm², YE	2		
+3	Connector, Molex KK 254, female, 4 pins	2		X2, X3
+4	Connector, Molex KK 254, female, 5 pins	1		X4
+5	Connector, Molex KK 254, female, 8 pins	1		X1
+6	Wire, 0.14 mm², BK	0.9	m	W1, W2, W3
+7	Wire, 0.14 mm², BU	0.3	m	W3
+8	Wire, 0.14 mm², GN	0.6	m	W1, W2
+9	Wire, 0.14 mm², OG	0.3	m	W3
+10	Wire, 0.14 mm², RD	0.6	m	W1, W2
+11	Wire, 0.14 mm², VT	0.3	m	W3
+12	Wire, 0.14 mm², YE	0.6	m	W1, W2
diff --git a/examples/demo02.gv b/examples/demo02.gv
index 65905c39..48f53817 100644
--- a/examples/demo02.gv
+++ b/examples/demo02.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -55,7 +55,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -91,7 +91,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X3 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -127,7 +127,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X4 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -167,7 +167,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -179,7 +179,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -191,7 +191,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#000000:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -222,9 +222,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     BK
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -236,9 +238,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X2:2</td>
+    <td>X1:2:+5V</td>
+    <td>
+     RD
+    </td>
+    <td>X2:2:+5V</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -250,9 +254,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>YE</td>
-    <td>X2:3</td>
+    <td>X1:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X2:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -264,9 +270,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:4</td>
-    <td>GN</td>
-    <td>X2:4</td>
+    <td>X1:4:SDA</td>
+    <td>
+     GN
+    </td>
+    <td>X2:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -281,7 +289,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#000000:#000000"]
 	X1:p1r:e -- W2:w1:w
 	W2:w1:e -- X3:p1l:w
@@ -312,9 +320,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X3:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     BK
+    </td>
+    <td>X3:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -326,9 +336,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X3:2</td>
+    <td>X1:2:+5V</td>
+    <td>
+     RD
+    </td>
+    <td>X3:2:+5V</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -340,9 +352,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>YE</td>
-    <td>X3:3</td>
+    <td>X1:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X3:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -354,9 +368,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:4</td>
-    <td>GN</td>
-    <td>X3:4</td>
+    <td>X1:4:SDA</td>
+    <td>
+     GN
+    </td>
+    <td>X3:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -371,7 +387,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#000000:#000000"]
 	X1:p1r:e -- W3:w1:w
 	W3:w1:e -- X4:p1l:w
@@ -402,9 +418,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X4:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     BK
+    </td>
+    <td>X4:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -416,9 +434,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:5</td>
-    <td>BU</td>
-    <td>X4:3</td>
+    <td>X1:5:MISO</td>
+    <td>
+     BU
+    </td>
+    <td>X4:3:MISO</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -430,9 +450,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:6</td>
-    <td>OG</td>
-    <td>X4:4</td>
+    <td>X1:6:MOSI</td>
+    <td>
+     OG
+    </td>
+    <td>X4:4:MOSI</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -444,9 +466,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:7</td>
-    <td>VT</td>
-    <td>X4:5</td>
+    <td>X1:7:SCK</td>
+    <td>
+     VT
+    </td>
+    <td>X4:5:SCK</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -461,7 +485,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#000000:#000000"]
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 	W4:w1:e -- X4:p1l:w
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    <tr><td>&nbsp;</td></tr>
    <tr>
     <td></td>
-    <td>BK</td>
-    <td>X4:1</td>
+    <td>
+     1:BK
+    </td>
+    <td>X4:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -501,8 +527,10 @@ graph {
    </tr>
    <tr>
     <td></td>
-    <td>RD</td>
-    <td>X4:2</td>
+    <td>
+     2:RD
+    </td>
+    <td>X4:2:+12V</td>
    </tr>
    <tr>
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@@ -517,5 +545,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 }
diff --git a/examples/demo02.html b/examples/demo02.html
index d8b70baf..cc726ae3 100644
--- a/examples/demo02.html
+++ b/examples/demo02.html
@@ -1,517 +1,613 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
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-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>demo02</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>demo02</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
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+<polygon fill="none" stroke="black" points="834.5,-472.5 834.5,-495.5 874.5,-495.5 874.5,-472.5 834.5,-472.5"/>
+<text text-anchor="start" x="838.5" y="-480.3" font-family="arial" font-size="14.00">4&#45;pin</text>
+<polygon fill="none" stroke="black" points="687.5,-449.5 687.5,-472.5 769.5,-472.5 769.5,-449.5 687.5,-449.5"/>
+<text text-anchor="start" x="724.5" y="-457.3" font-family="arial" font-size="14.00">1</text>
+<polygon fill="none" stroke="black" points="769.5,-449.5 769.5,-472.5 874.5,-472.5 874.5,-449.5 769.5,-449.5"/>
+<text text-anchor="start" x="806" y="-457.3" font-family="arial" font-size="14.00">GND</text>
+<polygon fill="none" stroke="black" points="687.5,-426.5 687.5,-449.5 769.5,-449.5 769.5,-426.5 687.5,-426.5"/>
+<text text-anchor="start" x="724.5" y="-434.3" font-family="arial" font-size="14.00">2</text>
+<polygon fill="none" stroke="black" points="769.5,-426.5 769.5,-449.5 874.5,-449.5 874.5,-426.5 769.5,-426.5"/>
+<text text-anchor="start" x="809" y="-434.3" font-family="arial" font-size="14.00">+5V</text>
+<polygon fill="none" stroke="black" points="687.5,-403.5 687.5,-426.5 769.5,-426.5 769.5,-403.5 687.5,-403.5"/>
+<text text-anchor="start" x="724.5" y="-411.3" font-family="arial" font-size="14.00">3</text>
+<polygon fill="none" stroke="black" points="769.5,-403.5 769.5,-426.5 874.5,-426.5 874.5,-403.5 769.5,-403.5"/>
+<text text-anchor="start" x="808" y="-411.3" font-family="arial" font-size="14.00">SCL</text>
+<polygon fill="none" stroke="black" points="687.5,-380.5 687.5,-403.5 769.5,-403.5 769.5,-380.5 687.5,-380.5"/>
+<text text-anchor="start" x="724.5" y="-388.3" font-family="arial" font-size="14.00">4</text>
+<polygon fill="none" stroke="black" points="769.5,-380.5 769.5,-403.5 874.5,-403.5 874.5,-380.5 769.5,-380.5"/>
+<text text-anchor="start" x="807.5" y="-388.3" font-family="arial" font-size="14.00">SDA</text>
 </g>
 <!-- X4 -->
 <g id="node4" class="node">
 <title>X4</title>
-<polygon fill="white" stroke="transparent" points="857,-334.5 675,-334.5 675,-173.5 857,-173.5 857,-334.5"/>
-<polygon fill="none" stroke="black" points="675,-311 675,-334 857,-334 857,-311 675,-311"/>
-<text text-anchor="start" x="757.5" y="-318.8" font-family="arial" font-size="14.00">X4</text>
-<polygon fill="none" stroke="black" points="675,-288 675,-311 768,-311 768,-288 675,-288"/>
-<text text-anchor="start" x="679" y="-295.8" font-family="arial" font-size="14.00">Molex KK 254</text>
-<polygon fill="none" stroke="black" points="768,-288 768,-311 818,-311 818,-288 768,-288"/>
-<text text-anchor="start" x="772" y="-295.8" font-family="arial" font-size="14.00">female</text>
-<polygon fill="none" stroke="black" points="818,-288 818,-311 857,-311 857,-288 818,-288"/>
-<text text-anchor="start" x="822" y="-295.8" font-family="arial" font-size="14.00">5&#45;pin</text>
-<polygon fill="none" stroke="black" points="675,-265 675,-288 752,-288 752,-265 675,-265"/>
-<text text-anchor="start" x="709.5" y="-272.8" font-family="arial" font-size="14.00">1</text>
-<polygon fill="none" stroke="black" points="752,-265 752,-288 857,-288 857,-265 752,-265"/>
-<text text-anchor="start" x="789" y="-272.8" font-family="arial" font-size="14.00">GND</text>
-<polygon fill="none" stroke="black" points="675,-242 675,-265 752,-265 752,-242 675,-242"/>
-<text text-anchor="start" x="709.5" y="-249.8" font-family="arial" font-size="14.00">2</text>
-<polygon fill="none" stroke="black" points="752,-242 752,-265 857,-265 857,-242 752,-242"/>
-<text text-anchor="start" x="788" y="-249.8" font-family="arial" font-size="14.00">+12V</text>
-<polygon fill="none" stroke="black" points="675,-219 675,-242 752,-242 752,-219 675,-219"/>
-<text text-anchor="start" x="709.5" y="-226.8" font-family="arial" font-size="14.00">3</text>
-<polygon fill="none" stroke="black" points="752,-219 752,-242 857,-242 857,-219 752,-219"/>
-<text text-anchor="start" x="786" y="-226.8" font-family="arial" font-size="14.00">MISO</text>
-<polygon fill="none" stroke="black" points="675,-196 675,-219 752,-219 752,-196 675,-196"/>
-<text text-anchor="start" x="709.5" y="-203.8" font-family="arial" font-size="14.00">4</text>
-<polygon fill="none" stroke="black" points="752,-196 752,-219 857,-219 857,-196 752,-196"/>
-<text text-anchor="start" x="786" y="-203.8" font-family="arial" font-size="14.00">MOSI</text>
-<polygon fill="none" stroke="black" points="675,-173 675,-196 752,-196 752,-173 675,-173"/>
-<text text-anchor="start" x="709.5" y="-180.8" font-family="arial" font-size="14.00">5</text>
-<polygon fill="none" stroke="black" points="752,-173 752,-196 857,-196 857,-173 752,-173"/>
-<text text-anchor="start" x="790.5" y="-180.8" font-family="arial" font-size="14.00">SCK</text>
+<polygon fill="#ffffff" stroke="black" points="874,-322 687,-322 687,-161 874,-161 874,-322"/>
+<polygon fill="none" stroke="black" points="687.5,-298.5 687.5,-321.5 874.5,-321.5 874.5,-298.5 687.5,-298.5"/>
+<text text-anchor="start" x="772" y="-306.3" font-family="arial" font-size="14.00">X4</text>
+<polygon fill="none" stroke="black" points="687.5,-275.5 687.5,-298.5 783.5,-298.5 783.5,-275.5 687.5,-275.5"/>
+<text text-anchor="start" x="691.5" y="-283.3" font-family="arial" font-size="14.00">Molex KK 254</text>
+<polygon fill="none" stroke="black" points="783.5,-275.5 783.5,-298.5 834.5,-298.5 834.5,-275.5 783.5,-275.5"/>
+<text text-anchor="start" x="787.5" y="-283.3" font-family="arial" font-size="14.00">female</text>
+<polygon fill="none" stroke="black" points="834.5,-275.5 834.5,-298.5 874.5,-298.5 874.5,-275.5 834.5,-275.5"/>
+<text text-anchor="start" x="838.5" y="-283.3" font-family="arial" font-size="14.00">5&#45;pin</text>
+<polygon fill="none" stroke="black" points="687.5,-252.5 687.5,-275.5 767.5,-275.5 767.5,-252.5 687.5,-252.5"/>
+<text text-anchor="start" x="723.5" y="-260.3" font-family="arial" font-size="14.00">1</text>
+<polygon fill="none" stroke="black" points="767.5,-252.5 767.5,-275.5 874.5,-275.5 874.5,-252.5 767.5,-252.5"/>
+<text text-anchor="start" x="805" y="-260.3" font-family="arial" font-size="14.00">GND</text>
+<polygon fill="none" stroke="black" points="687.5,-229.5 687.5,-252.5 767.5,-252.5 767.5,-229.5 687.5,-229.5"/>
+<text text-anchor="start" x="723.5" y="-237.3" font-family="arial" font-size="14.00">2</text>
+<polygon fill="none" stroke="black" points="767.5,-229.5 767.5,-252.5 874.5,-252.5 874.5,-229.5 767.5,-229.5"/>
+<text text-anchor="start" x="804" y="-237.3" font-family="arial" font-size="14.00">+12V</text>
+<polygon fill="none" stroke="black" points="687.5,-206.5 687.5,-229.5 767.5,-229.5 767.5,-206.5 687.5,-206.5"/>
+<text text-anchor="start" x="723.5" y="-214.3" font-family="arial" font-size="14.00">3</text>
+<polygon fill="none" stroke="black" points="767.5,-206.5 767.5,-229.5 874.5,-229.5 874.5,-206.5 767.5,-206.5"/>
+<text text-anchor="start" x="803" y="-214.3" font-family="arial" font-size="14.00">MISO</text>
+<polygon fill="none" stroke="black" points="687.5,-183.5 687.5,-206.5 767.5,-206.5 767.5,-183.5 687.5,-183.5"/>
+<text text-anchor="start" x="723.5" y="-191.3" font-family="arial" font-size="14.00">4</text>
+<polygon fill="none" stroke="black" points="767.5,-183.5 767.5,-206.5 874.5,-206.5 874.5,-183.5 767.5,-183.5"/>
+<text text-anchor="start" x="803" y="-191.3" font-family="arial" font-size="14.00">MOSI</text>
+<polygon fill="none" stroke="black" points="687.5,-160.5 687.5,-183.5 767.5,-183.5 767.5,-160.5 687.5,-160.5"/>
+<text text-anchor="start" x="723.5" y="-168.3" font-family="arial" font-size="14.00">5</text>
+<polygon fill="none" stroke="black" points="767.5,-160.5 767.5,-183.5 874.5,-183.5 874.5,-160.5 767.5,-160.5"/>
+<text text-anchor="start" x="806.5" y="-168.3" font-family="arial" font-size="14.00">SCK</text>
 </g>
 <!-- _ferrule_crimp_1 -->
 <g id="node5" class="node">
 <title>_ferrule_crimp_1</title>
-<polygon fill="white" stroke="transparent" points="189,-96 0,-96 0,-60 189,-60 189,-96"/>
-<polygon fill="none" stroke="black" points="0.5,-66 0.5,-89 87.5,-89 87.5,-66 0.5,-66"/>
-<text text-anchor="start" x="4.5" y="-73.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
-<polygon fill="none" stroke="black" points="87.5,-66 87.5,-89 154.5,-89 154.5,-66 87.5,-66"/>
-<text text-anchor="start" x="91.5" y="-73.8" font-family="arial" font-size="14.00">0.25 mm²</text>
-<polygon fill="none" stroke="black" points="154.5,-66 154.5,-89 181.5,-89 181.5,-66 154.5,-66"/>
-<text text-anchor="start" x="158.5" y="-73.8" font-family="arial" font-size="14.00">YE</text>
-<polygon fill="#ffff00" stroke="transparent" points="181.5,-66 181.5,-89 189.5,-89 189.5,-66 181.5,-66"/>
-<polygon fill="none" stroke="black" points="181.5,-66 181.5,-89 189.5,-89 189.5,-66 181.5,-66"/>
+<polygon fill="#ffffff" stroke="black" points="192,-70 0,-70 0,-47 192,-47 192,-70"/>
+<polygon fill="none" stroke="black" points="0,-46.5 0,-69.5 89,-69.5 89,-46.5 0,-46.5"/>
+<text text-anchor="start" x="4" y="-54.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="none" stroke="black" points="89,-46.5 89,-69.5 157,-69.5 157,-46.5 89,-46.5"/>
+<text text-anchor="start" x="93" y="-54.3" font-family="arial" font-size="14.00">0.25 mm²</text>
+<polygon fill="none" stroke="black" points="157,-46.5 157,-69.5 184,-69.5 184,-46.5 157,-46.5"/>
+<text text-anchor="start" x="161" y="-54.3" font-family="arial" font-size="14.00">YE</text>
+<polygon fill="#ffff00" stroke="transparent" points="184,-46.5 184,-69.5 192,-69.5 192,-46.5 184,-46.5"/>
+<polygon fill="none" stroke="black" points="184,-46.5 184,-69.5 192,-69.5 192,-46.5 184,-46.5"/>
 </g>
 <!-- W4 -->
 <g id="node10" class="node">
 <title>W4</title>
-<polygon fill="none" stroke="black" points="531,-147 333,-147 333,-13 531,-13 531,-147"/>
-<polygon fill="none" stroke="black" points="333,-124 333,-147 531,-147 531,-124 333,-124"/>
-<text text-anchor="start" x="421" y="-131.8" font-family="arial" font-size="14.00">W4</text>
-<polygon fill="none" stroke="black" points="333,-101 333,-124 356,-124 356,-101 333,-101"/>
-<text text-anchor="start" x="337" y="-108.8" font-family="arial" font-size="14.00">2x</text>
-<polygon fill="none" stroke="black" points="356,-101 356,-124 488,-124 488,-101 356,-101"/>
-<text text-anchor="start" x="360" y="-108.8" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
-<polygon fill="none" stroke="black" points="488,-101 488,-124 531,-124 531,-101 488,-101"/>
-<text text-anchor="start" x="492" y="-108.8" font-family="arial" font-size="14.00">0.3 m</text>
-<text text-anchor="start" x="357.5" y="-87.8" font-family="arial" font-size="14.00"> </text>
-<text text-anchor="start" x="411" y="-68.8" font-family="arial" font-size="14.00">BK</text>
-<text text-anchor="start" x="479" y="-68.8" font-family="arial" font-size="14.00">X4:1</text>
-<polygon fill="#000000" stroke="transparent" points="333,-61 333,-63 531,-63 531,-61 333,-61"/>
-<polygon fill="#000000" stroke="transparent" points="333,-59 333,-61 531,-61 531,-59 333,-59"/>
-<polygon fill="#000000" stroke="transparent" points="333,-57 333,-59 531,-59 531,-57 333,-57"/>
-<text text-anchor="start" x="410.5" y="-43.8" font-family="arial" font-size="14.00">RD</text>
-<text text-anchor="start" x="479" y="-43.8" font-family="arial" font-size="14.00">X4:2</text>
-<polygon fill="#000000" stroke="transparent" points="333,-36 333,-38 531,-38 531,-36 333,-36"/>
-<polygon fill="#ff0000" stroke="transparent" points="333,-34 333,-36 531,-36 531,-34 333,-34"/>
-<polygon fill="#000000" stroke="transparent" points="333,-32 333,-34 531,-34 531,-32 333,-32"/>
-<text text-anchor="start" x="357.5" y="-18.8" font-family="arial" font-size="14.00"> </text>
+<polygon fill="#ffffff" stroke="black" points="539,-134.5 340,-134.5 340,-0.5 539,-0.5 539,-134.5"/>
+<polygon fill="none" stroke="black" points="340.5,-111.5 340.5,-134.5 539.5,-134.5 539.5,-111.5 340.5,-111.5"/>
+<text text-anchor="start" x="429.5" y="-119.3" font-family="arial" font-size="14.00">W4</text>
+<polygon fill="none" stroke="black" points="340.5,-88.5 340.5,-111.5 363.5,-111.5 363.5,-88.5 340.5,-88.5"/>
+<text text-anchor="start" x="344.5" y="-96.3" font-family="arial" font-size="14.00">2x</text>
+<polygon fill="none" stroke="black" points="363.5,-88.5 363.5,-111.5 495.5,-111.5 495.5,-88.5 363.5,-88.5"/>
+<text text-anchor="start" x="367.5" y="-96.3" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
+<polygon fill="none" stroke="black" points="495.5,-88.5 495.5,-111.5 539.5,-111.5 539.5,-88.5 495.5,-88.5"/>
+<text text-anchor="start" x="499.5" y="-96.3" font-family="arial" font-size="14.00">0.3 m</text>
+<text text-anchor="start" x="351" y="-75.3" font-family="arial" font-size="14.00"> </text>
+<text text-anchor="start" x="376.5" y="-56.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;1:BK &#160;&#160;&#160;</text>
+<text text-anchor="start" x="464.5" y="-56.3" font-family="arial" font-size="14.00">X4:1:GND</text>
+<polygon fill="#000000" stroke="transparent" points="340.5,-48.5 340.5,-50.5 539.5,-50.5 539.5,-48.5 340.5,-48.5"/>
+<polygon fill="#000000" stroke="transparent" points="340.5,-46.5 340.5,-48.5 539.5,-48.5 539.5,-46.5 340.5,-46.5"/>
+<polygon fill="#000000" stroke="transparent" points="340.5,-44.5 340.5,-46.5 539.5,-46.5 539.5,-44.5 340.5,-44.5"/>
+<text text-anchor="start" x="376" y="-31.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;2:RD &#160;&#160;&#160;</text>
+<text text-anchor="start" x="463.5" y="-31.3" font-family="arial" font-size="14.00">X4:2:+12V</text>
+<polygon fill="#000000" stroke="transparent" points="340.5,-23.5 340.5,-25.5 539.5,-25.5 539.5,-23.5 340.5,-23.5"/>
+<polygon fill="#ff0000" stroke="transparent" points="340.5,-21.5 340.5,-23.5 539.5,-23.5 539.5,-21.5 340.5,-21.5"/>
+<polygon fill="#000000" stroke="transparent" points="340.5,-19.5 340.5,-21.5 539.5,-21.5 539.5,-19.5 340.5,-19.5"/>
+<text text-anchor="start" x="351" y="-6.3" font-family="arial" font-size="14.00"> </text>
 </g>
 <!-- _ferrule_crimp_1&#45;&#45;W4 -->
 <g id="edge25" class="edge">
 <title>_ferrule_crimp_1:e&#45;&#45;W4:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-76C251.96,-76.72 266.97,-58.72 333,-58"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-78C253.5,-78 268.5,-60 333,-60"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-80C255.03,-79.28 270.04,-61.28 333,-62"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-56.5C256.61,-56.85 272.63,-45.85 339.5,-45.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-58.5C257.74,-58.5 273.76,-47.5 339.5,-47.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-60.5C258.87,-60.15 274.89,-49.15 339.5,-49.5"/>
 </g>
 <!-- _ferrule_crimp_2 -->
 <g id="node6" class="node">
 <title>_ferrule_crimp_2</title>
-<polygon fill="white" stroke="transparent" points="189,-36 0,-36 0,0 189,0 189,-36"/>
-<polygon fill="none" stroke="black" points="0.5,-6 0.5,-29 87.5,-29 87.5,-6 0.5,-6"/>
-<text text-anchor="start" x="4.5" y="-13.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
-<polygon fill="none" stroke="black" points="87.5,-6 87.5,-29 154.5,-29 154.5,-6 87.5,-6"/>
-<text text-anchor="start" x="91.5" y="-13.8" font-family="arial" font-size="14.00">0.25 mm²</text>
-<polygon fill="none" stroke="black" points="154.5,-6 154.5,-29 181.5,-29 181.5,-6 154.5,-6"/>
-<text text-anchor="start" x="158.5" y="-13.8" font-family="arial" font-size="14.00">YE</text>
-<polygon fill="#ffff00" stroke="transparent" points="181.5,-6 181.5,-29 189.5,-29 189.5,-6 181.5,-6"/>
-<polygon fill="none" stroke="black" points="181.5,-6 181.5,-29 189.5,-29 189.5,-6 181.5,-6"/>
+<polygon fill="#ffffff" stroke="black" points="192,-23 0,-23 0,0 192,0 192,-23"/>
+<polygon fill="none" stroke="black" points="0,0.5 0,-22.5 89,-22.5 89,0.5 0,0.5"/>
+<text text-anchor="start" x="4" y="-7.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="none" stroke="black" points="89,0.5 89,-22.5 157,-22.5 157,0.5 89,0.5"/>
+<text text-anchor="start" x="93" y="-7.3" font-family="arial" font-size="14.00">0.25 mm²</text>
+<polygon fill="none" stroke="black" points="157,0.5 157,-22.5 184,-22.5 184,0.5 157,0.5"/>
+<text text-anchor="start" x="161" y="-7.3" font-family="arial" font-size="14.00">YE</text>
+<polygon fill="#ffff00" stroke="transparent" points="184,0.5 184,-22.5 192,-22.5 192,0.5 184,0.5"/>
+<polygon fill="none" stroke="black" points="184,0.5 184,-22.5 192,-22.5 192,0.5 184,0.5"/>
 </g>
 <!-- _ferrule_crimp_2&#45;&#45;W4 -->
 <g id="edge27" class="edge">
 <title>_ferrule_crimp_2:e&#45;&#45;W4:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-16C254.94,-16.67 270.05,-33.67 333,-33"/>
-<path fill="none" stroke="#ff0000" stroke-width="2" d="M189,-18C253.44,-18 268.56,-35 333,-35"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-20C251.95,-19.33 267.06,-36.33 333,-37"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-9.5C258.87,-9.85 274.89,-20.85 339.5,-20.5"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M192,-11.5C257.74,-11.5 273.76,-22.5 339.5,-22.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-13.5C256.61,-13.15 272.63,-24.15 339.5,-24.5"/>
 </g>
 <!-- W1&#45;&#45;X2 -->
 <g id="edge2" class="edge">
 <title>W1:e&#45;&#45;X2:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-682C594.76,-682.02 610.75,-680.02 675,-680"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-684C595.01,-684 610.99,-682 675,-682"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-686C595.25,-685.98 611.24,-683.98 675,-684"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-669.5C605.37,-669.51 621.64,-667.51 687,-667.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-671.5C605.62,-671.5 621.88,-669.5 687,-669.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-673.5C605.86,-673.49 622.13,-671.49 687,-671.5"/>
 </g>
 <!-- W1&#45;&#45;X2 -->
 <g id="edge4" class="edge">
 <title>W1:e&#45;&#45;X2:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-657C594.88,-657 610.87,-656 675,-656"/>
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-<h1>Bill of Materials</h1><table style="border:1px solid #000000; font-size: 14pt; border-spacing: 0px"><tr><th style="text-align:left; border:1px solid #000000; padding: 8px">Item</th><th style="text-align:left; border:1px solid #000000; padding: 8px">Qty</th><th style="text-align:left; border:1px solid #000000; padding: 8px">Unit</th><th style="text-align:left; border:1px solid #000000; padding: 8px">Designators</th></tr><tr><td style="border:1px solid #000000; padding: 4px">Connector, Crimp ferrule, 0.25 mm&sup2;, YE</td><td style="text-align:right; border:1px solid #000000; padding: 4px">2</td><td style="border:1px solid #000000; padding: 4px"></td><td style="border:1px solid #000000; padding: 4px"></td></tr><tr><td style="border:1px solid #000000; padding: 4px">Connector, Molex KK 254, female, 4 pins</td><td style="text-align:right; border:1px solid #000000; padding: 4px">2</td><td style="border:1px solid #000000; padding: 4px"></td><td style="border:1px solid #000000; padding: 4px">X2, X3</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Connector, Molex KK 254, female, 5 pins</td><td style="text-align:right; border:1px solid #000000; padding: 4px">1</td><td style="border:1px solid #000000; padding: 4px"></td><td style="border:1px solid #000000; padding: 4px">X4</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Connector, Molex KK 254, female, 8 pins</td><td style="text-align:right; border:1px solid #000000; padding: 4px">1</td><td style="border:1px solid #000000; padding: 4px"></td><td style="border:1px solid #000000; padding: 4px">X1</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Cable, 2 x 0.25 mm&sup2;</td><td style="text-align:right; border:1px solid #000000; padding: 4px">0.3</td><td style="border:1px solid #000000; padding: 4px">m</td><td style="border:1px solid #000000; padding: 4px">W4</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, BK</td><td style="text-align:right; border:1px solid #000000; padding: 4px">0.9</td><td style="border:1px solid #000000; padding: 4px">m</td><td style="border:1px solid #000000; padding: 4px">W1, W2, W3</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, BU</td><td style="text-align:right; border:1px solid #000000; padding: 4px">0.3</td><td style="border:1px solid #000000; padding: 4px">m</td><td style="border:1px solid #000000; padding: 4px">W3</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, GN</td><td style="text-align:right; border:1px solid #000000; padding: 4px">0.6</td><td style="border:1px solid #000000; padding: 4px">m</td><td style="border:1px solid #000000; padding: 4px">W1, W2</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, OG</td><td style="text-align:right; border:1px solid #000000; padding: 4px">0.3</td><td style="border:1px solid #000000; padding: 4px">m</td><td style="border:1px solid #000000; padding: 4px">W3</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, RD</td><td style="text-align:right; border:1px solid #000000; padding: 4px">0.6</td><td style="border:1px solid #000000; padding: 4px">m</td><td style="border:1px solid #000000; padding: 4px">W1, W2</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, VT</td><td style="text-align:right; border:1px solid #000000; padding: 4px">0.3</td><td style="border:1px solid #000000; padding: 4px">m</td><td style="border:1px solid #000000; padding: 4px">W3</td></tr><tr><td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, YE</td><td style="text-align:right; border:1px solid #000000; padding: 4px">0.6</td><td style="border:1px solid #000000; padding: 4px">m</td><td style="border:1px solid #000000; padding: 4px">W1, W2</td></tr></table></body></html>
\ No newline at end of file
+<h2>Bill of Materials</h2>
+<table style="border:1px solid #000000; font-size: 14pt; border-spacing: 0px">
+ <tr>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Id</th>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Description</th>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Qty</th>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Unit</th>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Designators</th>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">1</td>
+  <td style="border:1px solid #000000; padding: 4px">Cable, 2 x 0.25 mm&sup2;</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.3</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W4</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">2</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, Crimp ferrule, 0.25 mm&sup2;, YE</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">2</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">3</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, Molex KK 254, female, 4 pins</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">2</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X2, X3</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">4</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, Molex KK 254, female, 5 pins</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X4</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">5</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, Molex KK 254, female, 8 pins</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">6</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, BK</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.9</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1, W2, W3</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">7</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, BU</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.3</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W3</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">8</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, GN</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.6</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1, W2</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">9</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, OG</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.3</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W3</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">10</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, RD</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.6</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1, W2</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">11</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, VT</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.3</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W3</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">12</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.14 mm&sup2;, YE</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.6</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1, W2</td>
+ </tr>
+</table>
+</body></html>
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-<polygon fill="#ffff00" stroke="transparent" points="181.5,-66 181.5,-89 189.5,-89 189.5,-66 181.5,-66"/>
-<polygon fill="none" stroke="black" points="181.5,-66 181.5,-89 189.5,-89 189.5,-66 181.5,-66"/>
+<polygon fill="#ffffff" stroke="black" points="192,-70 0,-70 0,-47 192,-47 192,-70"/>
+<polygon fill="none" stroke="black" points="0,-46.5 0,-69.5 89,-69.5 89,-46.5 0,-46.5"/>
+<text text-anchor="start" x="4" y="-54.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="none" stroke="black" points="89,-46.5 89,-69.5 157,-69.5 157,-46.5 89,-46.5"/>
+<text text-anchor="start" x="93" y="-54.3" font-family="arial" font-size="14.00">0.25 mm²</text>
+<polygon fill="none" stroke="black" points="157,-46.5 157,-69.5 184,-69.5 184,-46.5 157,-46.5"/>
+<text text-anchor="start" x="161" y="-54.3" font-family="arial" font-size="14.00">YE</text>
+<polygon fill="#ffff00" stroke="transparent" points="184,-46.5 184,-69.5 192,-69.5 192,-46.5 184,-46.5"/>
+<polygon fill="none" stroke="black" points="184,-46.5 184,-69.5 192,-69.5 192,-46.5 184,-46.5"/>
 </g>
 <!-- W4 -->
 <g id="node10" class="node">
 <title>W4</title>
-<polygon fill="none" stroke="black" points="531,-147 333,-147 333,-13 531,-13 531,-147"/>
-<polygon fill="none" stroke="black" points="333,-124 333,-147 531,-147 531,-124 333,-124"/>
-<text text-anchor="start" x="421" y="-131.8" font-family="arial" font-size="14.00">W4</text>
-<polygon fill="none" stroke="black" points="333,-101 333,-124 356,-124 356,-101 333,-101"/>
-<text text-anchor="start" x="337" y="-108.8" font-family="arial" font-size="14.00">2x</text>
-<polygon fill="none" stroke="black" points="356,-101 356,-124 488,-124 488,-101 356,-101"/>
-<text text-anchor="start" x="360" y="-108.8" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
-<polygon fill="none" stroke="black" points="488,-101 488,-124 531,-124 531,-101 488,-101"/>
-<text text-anchor="start" x="492" y="-108.8" font-family="arial" font-size="14.00">0.3 m</text>
-<text text-anchor="start" x="357.5" y="-87.8" font-family="arial" font-size="14.00"> </text>
-<text text-anchor="start" x="411" y="-68.8" font-family="arial" font-size="14.00">BK</text>
-<text text-anchor="start" x="479" y="-68.8" font-family="arial" font-size="14.00">X4:1</text>
-<polygon fill="#000000" stroke="transparent" points="333,-61 333,-63 531,-63 531,-61 333,-61"/>
-<polygon fill="#000000" stroke="transparent" points="333,-59 333,-61 531,-61 531,-59 333,-59"/>
-<polygon fill="#000000" stroke="transparent" points="333,-57 333,-59 531,-59 531,-57 333,-57"/>
-<text text-anchor="start" x="410.5" y="-43.8" font-family="arial" font-size="14.00">RD</text>
-<text text-anchor="start" x="479" y="-43.8" font-family="arial" font-size="14.00">X4:2</text>
-<polygon fill="#000000" stroke="transparent" points="333,-36 333,-38 531,-38 531,-36 333,-36"/>
-<polygon fill="#ff0000" stroke="transparent" points="333,-34 333,-36 531,-36 531,-34 333,-34"/>
-<polygon fill="#000000" stroke="transparent" points="333,-32 333,-34 531,-34 531,-32 333,-32"/>
-<text text-anchor="start" x="357.5" y="-18.8" font-family="arial" font-size="14.00"> </text>
+<polygon fill="#ffffff" stroke="black" points="539,-134.5 340,-134.5 340,-0.5 539,-0.5 539,-134.5"/>
+<polygon fill="none" stroke="black" points="340.5,-111.5 340.5,-134.5 539.5,-134.5 539.5,-111.5 340.5,-111.5"/>
+<text text-anchor="start" x="429.5" y="-119.3" font-family="arial" font-size="14.00">W4</text>
+<polygon fill="none" stroke="black" points="340.5,-88.5 340.5,-111.5 363.5,-111.5 363.5,-88.5 340.5,-88.5"/>
+<text text-anchor="start" x="344.5" y="-96.3" font-family="arial" font-size="14.00">2x</text>
+<polygon fill="none" stroke="black" points="363.5,-88.5 363.5,-111.5 495.5,-111.5 495.5,-88.5 363.5,-88.5"/>
+<text text-anchor="start" x="367.5" y="-96.3" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
+<polygon fill="none" stroke="black" points="495.5,-88.5 495.5,-111.5 539.5,-111.5 539.5,-88.5 495.5,-88.5"/>
+<text text-anchor="start" x="499.5" y="-96.3" font-family="arial" font-size="14.00">0.3 m</text>
+<text text-anchor="start" x="351" y="-75.3" font-family="arial" font-size="14.00"> </text>
+<text text-anchor="start" x="376.5" y="-56.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;1:BK &#160;&#160;&#160;</text>
+<text text-anchor="start" x="464.5" y="-56.3" font-family="arial" font-size="14.00">X4:1:GND</text>
+<polygon fill="#000000" stroke="transparent" points="340.5,-48.5 340.5,-50.5 539.5,-50.5 539.5,-48.5 340.5,-48.5"/>
+<polygon fill="#000000" stroke="transparent" points="340.5,-46.5 340.5,-48.5 539.5,-48.5 539.5,-46.5 340.5,-46.5"/>
+<polygon fill="#000000" stroke="transparent" points="340.5,-44.5 340.5,-46.5 539.5,-46.5 539.5,-44.5 340.5,-44.5"/>
+<text text-anchor="start" x="376" y="-31.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;2:RD &#160;&#160;&#160;</text>
+<text text-anchor="start" x="463.5" y="-31.3" font-family="arial" font-size="14.00">X4:2:+12V</text>
+<polygon fill="#000000" stroke="transparent" points="340.5,-23.5 340.5,-25.5 539.5,-25.5 539.5,-23.5 340.5,-23.5"/>
+<polygon fill="#ff0000" stroke="transparent" points="340.5,-21.5 340.5,-23.5 539.5,-23.5 539.5,-21.5 340.5,-21.5"/>
+<polygon fill="#000000" stroke="transparent" points="340.5,-19.5 340.5,-21.5 539.5,-21.5 539.5,-19.5 340.5,-19.5"/>
+<text text-anchor="start" x="351" y="-6.3" font-family="arial" font-size="14.00"> </text>
 </g>
 <!-- _ferrule_crimp_1&#45;&#45;W4 -->
 <g id="edge25" class="edge">
 <title>_ferrule_crimp_1:e&#45;&#45;W4:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-76C251.96,-76.72 266.97,-58.72 333,-58"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-78C253.5,-78 268.5,-60 333,-60"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-80C255.03,-79.28 270.04,-61.28 333,-62"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-56.5C256.61,-56.85 272.63,-45.85 339.5,-45.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-58.5C257.74,-58.5 273.76,-47.5 339.5,-47.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-60.5C258.87,-60.15 274.89,-49.15 339.5,-49.5"/>
 </g>
 <!-- _ferrule_crimp_2 -->
 <g id="node6" class="node">
 <title>_ferrule_crimp_2</title>
-<polygon fill="white" stroke="transparent" points="189,-36 0,-36 0,0 189,0 189,-36"/>
-<polygon fill="none" stroke="black" points="0.5,-6 0.5,-29 87.5,-29 87.5,-6 0.5,-6"/>
-<text text-anchor="start" x="4.5" y="-13.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
-<polygon fill="none" stroke="black" points="87.5,-6 87.5,-29 154.5,-29 154.5,-6 87.5,-6"/>
-<text text-anchor="start" x="91.5" y="-13.8" font-family="arial" font-size="14.00">0.25 mm²</text>
-<polygon fill="none" stroke="black" points="154.5,-6 154.5,-29 181.5,-29 181.5,-6 154.5,-6"/>
-<text text-anchor="start" x="158.5" y="-13.8" font-family="arial" font-size="14.00">YE</text>
-<polygon fill="#ffff00" stroke="transparent" points="181.5,-6 181.5,-29 189.5,-29 189.5,-6 181.5,-6"/>
-<polygon fill="none" stroke="black" points="181.5,-6 181.5,-29 189.5,-29 189.5,-6 181.5,-6"/>
+<polygon fill="#ffffff" stroke="black" points="192,-23 0,-23 0,0 192,0 192,-23"/>
+<polygon fill="none" stroke="black" points="0,0.5 0,-22.5 89,-22.5 89,0.5 0,0.5"/>
+<text text-anchor="start" x="4" y="-7.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="none" stroke="black" points="89,0.5 89,-22.5 157,-22.5 157,0.5 89,0.5"/>
+<text text-anchor="start" x="93" y="-7.3" font-family="arial" font-size="14.00">0.25 mm²</text>
+<polygon fill="none" stroke="black" points="157,0.5 157,-22.5 184,-22.5 184,0.5 157,0.5"/>
+<text text-anchor="start" x="161" y="-7.3" font-family="arial" font-size="14.00">YE</text>
+<polygon fill="#ffff00" stroke="transparent" points="184,0.5 184,-22.5 192,-22.5 192,0.5 184,0.5"/>
+<polygon fill="none" stroke="black" points="184,0.5 184,-22.5 192,-22.5 192,0.5 184,0.5"/>
 </g>
 <!-- _ferrule_crimp_2&#45;&#45;W4 -->
 <g id="edge27" class="edge">
 <title>_ferrule_crimp_2:e&#45;&#45;W4:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-16C254.94,-16.67 270.05,-33.67 333,-33"/>
-<path fill="none" stroke="#ff0000" stroke-width="2" d="M189,-18C253.44,-18 268.56,-35 333,-35"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M189,-20C251.95,-19.33 267.06,-36.33 333,-37"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-9.5C258.87,-9.85 274.89,-20.85 339.5,-20.5"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M192,-11.5C257.74,-11.5 273.76,-22.5 339.5,-22.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M192,-13.5C256.61,-13.15 272.63,-24.15 339.5,-24.5"/>
 </g>
 <!-- W1&#45;&#45;X2 -->
 <g id="edge2" class="edge">
 <title>W1:e&#45;&#45;X2:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-682C594.76,-682.02 610.75,-680.02 675,-680"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-684C595.01,-684 610.99,-682 675,-682"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-686C595.25,-685.98 611.24,-683.98 675,-684"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-669.5C605.37,-669.51 621.64,-667.51 687,-667.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-671.5C605.62,-671.5 621.88,-669.5 687,-669.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-673.5C605.86,-673.49 622.13,-671.49 687,-671.5"/>
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 <!-- W1&#45;&#45;X2 -->
 <g id="edge4" class="edge">
 <title>W1:e&#45;&#45;X2:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-657C594.88,-657 610.87,-656 675,-656"/>
-<path fill="none" stroke="#ff0000" stroke-width="2" d="M531,-659C595,-659 611,-658 675,-658"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-661C595.13,-661 611.12,-660 675,-660"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-644.5C605.49,-644.5 621.76,-643.5 687,-643.5"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M540.5,-646.5C605.61,-646.5 621.89,-645.5 687,-645.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-648.5C605.74,-648.5 622.01,-647.5 687,-647.5"/>
 </g>
 <!-- W1&#45;&#45;X2 -->
 <g id="edge6" class="edge">
 <title>W1:e&#45;&#45;X2:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-632C595.13,-632 611.12,-633 675,-633"/>
-<path fill="none" stroke="#ffff00" stroke-width="2" d="M531,-634C595,-634 611,-635 675,-635"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-636C594.88,-636 610.87,-637 675,-637"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-619.5C605.74,-619.5 622.01,-620.5 687,-620.5"/>
+<path fill="none" stroke="#ffff00" stroke-width="2" d="M540.5,-621.5C605.61,-621.5 621.89,-622.5 687,-622.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-623.5C605.49,-623.5 621.76,-624.5 687,-624.5"/>
 </g>
 <!-- W1&#45;&#45;X2 -->
 <g id="edge8" class="edge">
 <title>W1:e&#45;&#45;X2:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-607C595.38,-607.03 611.36,-610.03 675,-610"/>
-<path fill="none" stroke="#00ff00" stroke-width="2" d="M531,-609C595.01,-609 610.99,-612 675,-612"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-611C594.64,-610.97 610.62,-613.97 675,-614"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-594.5C605.99,-594.53 622.24,-597.53 687,-597.5"/>
+<path fill="none" stroke="#00ff00" stroke-width="2" d="M540.5,-596.5C605.62,-596.5 621.88,-599.5 687,-599.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-598.5C605.26,-598.47 621.51,-601.47 687,-601.5"/>
 </g>
 <!-- W2&#45;&#45;X3 -->
 <g id="edge10" class="edge">
 <title>W2:e&#45;&#45;X3:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-474C594.76,-474.02 610.75,-472.02 675,-472"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-476C595.01,-476 610.99,-474 675,-474"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-478C595.25,-477.98 611.24,-475.98 675,-476"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-461.5C605.37,-461.51 621.64,-459.51 687,-459.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-463.5C605.62,-463.5 621.88,-461.5 687,-461.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-465.5C605.86,-465.49 622.13,-463.49 687,-463.5"/>
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 <!-- W2&#45;&#45;X3 -->
 <g id="edge12" class="edge">
 <title>W2:e&#45;&#45;X3:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-449C594.88,-449 610.87,-448 675,-448"/>
-<path fill="none" stroke="#ff0000" stroke-width="2" d="M531,-451C595,-451 611,-450 675,-450"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-453C595.13,-453 611.12,-452 675,-452"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-436.5C605.49,-436.5 621.76,-435.5 687,-435.5"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M540.5,-438.5C605.61,-438.5 621.89,-437.5 687,-437.5"/>
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 <!-- W2&#45;&#45;X3 -->
 <g id="edge14" class="edge">
 <title>W2:e&#45;&#45;X3:w</title>
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-<path fill="none" stroke="#ffff00" stroke-width="2" d="M531,-426C595,-426 611,-427 675,-427"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-428C594.88,-428 610.87,-429 675,-429"/>
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 <!-- W2&#45;&#45;X3 -->
 <g id="edge16" class="edge">
 <title>W2:e&#45;&#45;X3:w</title>
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 <!-- W3&#45;&#45;X4 -->
 <g id="edge18" class="edge">
 <title>W3:e&#45;&#45;X4:w</title>
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 <g id="edge20" class="edge">
 <title>W3:e&#45;&#45;X4:w</title>
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 <!-- W3&#45;&#45;X4 -->
 <g id="edge22" class="edge">
 <title>W3:e&#45;&#45;X4:w</title>
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 <!-- W3&#45;&#45;X4 -->
 <g id="edge24" class="edge">
 <title>W3:e&#45;&#45;X4:w</title>
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 <!-- W4&#45;&#45;X4 -->
 <g id="edge26" class="edge">
 <title>W4:e&#45;&#45;X4:w</title>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-49.5C655.01,-46.76 568.78,-263.76 687,-266.5"/>
 </g>
 <!-- W4&#45;&#45;X4 -->
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 <title>W4:e&#45;&#45;X4:w</title>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M531,-37C645.26,-34.25 557.03,-252.25 675,-255"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-20.5C659.09,-23.24 572.12,-241.24 687,-238.5"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M540.5,-22.5C657.23,-22.5 570.27,-240.5 687,-240.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M540.5,-24.5C655.38,-21.76 568.41,-239.76 687,-242.5"/>
 </g>
 </g>
 </svg>
diff --git a/examples/ex01.bom.tsv b/examples/ex01.bom.tsv
index 8af26913..0b6062de 100644
--- a/examples/ex01.bom.tsv
+++ b/examples/ex01.bom.tsv
@@ -1,3 +1,3 @@
-Item	Qty	Unit	Designators
-Connector, Molex KK 254, female, 4 pins	2		X1, X2
-Cable, Serial, 4 x 0.25 mm² shielded	0.2	m	W1
+Id	Description	Qty	Unit	Designators
+1	Cable, Serial, 4 x 0.25 mm² shielded	0.2	m	W1
+2	Connector, Molex KK 254, female, 4 pins	2		X1, X2
diff --git a/examples/ex01.gv b/examples/ex01.gv
index d5c67867..f5f1eade 100644
--- a/examples/ex01.gv
+++ b/examples/ex01.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -39,7 +39,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -75,7 +75,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#895956:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -110,9 +110,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BN</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     1:BN
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -124,9 +126,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X2:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     2:RD
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -138,9 +142,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>OG</td>
-    <td>X2:4</td>
+    <td>X1:3:RX</td>
+    <td>
+     3:OG
+    </td>
+    <td>X2:4:TX</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -152,9 +158,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:4</td>
-    <td>YE</td>
-    <td>X2:3</td>
+    <td>X1:4:TX</td>
+    <td>
+     4:YE
+    </td>
+    <td>X2:3:RX</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -167,7 +175,7 @@ graph {
    </tr>
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
+    <td>X1:1:GND</td>
     <td>Shield</td>
     <td><!-- s_out --></td>
    </tr>
@@ -176,5 +184,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 }
diff --git a/examples/ex01.html b/examples/ex01.html
index f21e86ad..63558a53 100644
--- a/examples/ex01.html
+++ b/examples/ex01.html
@@ -1,183 +1,209 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
- <title>WireViz Diagram and BOM</title>
-</head><body style="font-family:Arial">
-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>ex01</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>ex01</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
  -->
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- viewBox="0.00 0.00 931.00 232.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<svg width="943pt" height="232pt"
+ viewBox="0.00 0.00 943.00 232.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-228 939,-228 939,4 -4,4"/>
 <!-- X1 -->
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 <title>X1</title>
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-<polygon fill="none" stroke="black" points="93,-145 93,-168 143,-168 143,-145 93,-145"/>
-<text text-anchor="start" x="97" y="-152.8" font-family="arial" font-size="14.00">female</text>
-<polygon fill="none" stroke="black" points="143,-145 143,-168 182,-168 182,-145 143,-145"/>
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-<polygon fill="none" stroke="black" points="0,-122 0,-145 103,-145 103,-122 0,-122"/>
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-<text text-anchor="start" x="138.5" y="-60.8" font-family="arial" font-size="14.00">4</text>
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+<polygon fill="none" stroke="black" points="0.5,-168 0.5,-191 187.5,-191 187.5,-168 0.5,-168"/>
+<text text-anchor="start" x="85" y="-175.8" font-family="arial" font-size="14.00">X1</text>
+<polygon fill="none" stroke="black" points="0.5,-145 0.5,-168 96.5,-168 96.5,-145 0.5,-145"/>
+<text text-anchor="start" x="4.5" y="-152.8" font-family="arial" font-size="14.00">Molex KK 254</text>
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+<text text-anchor="start" x="37.5" y="-129.8" font-family="arial" font-size="14.00">GND</text>
+<polygon fill="none" stroke="black" points="106.5,-122 106.5,-145 187.5,-145 187.5,-122 106.5,-122"/>
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+<text text-anchor="start" x="38.5" y="-106.8" font-family="arial" font-size="14.00">VCC</text>
+<polygon fill="none" stroke="black" points="106.5,-99 106.5,-122 187.5,-122 187.5,-99 106.5,-99"/>
+<text text-anchor="start" x="143" y="-106.8" font-family="arial" font-size="14.00">2</text>
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+<polygon fill="none" stroke="black" points="106.5,-76 106.5,-99 187.5,-99 187.5,-76 106.5,-76"/>
+<text text-anchor="start" x="143" y="-83.8" font-family="arial" font-size="14.00">3</text>
+<polygon fill="none" stroke="black" points="0.5,-53 0.5,-76 106.5,-76 106.5,-53 0.5,-53"/>
+<text text-anchor="start" x="44.5" y="-60.8" font-family="arial" font-size="14.00">TX</text>
+<polygon fill="none" stroke="black" points="106.5,-53 106.5,-76 187.5,-76 187.5,-53 106.5,-53"/>
+<text text-anchor="start" x="143" y="-60.8" font-family="arial" font-size="14.00">4</text>
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 <!-- W1 -->
 <g id="node3" class="node">
 <title>W1</title>
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-<text text-anchor="start" x="451" y="-208.8" font-family="arial" font-size="14.00">W1</text>
-<polygon fill="none" stroke="black" points="326.5,-178 326.5,-201 369.5,-201 369.5,-178 326.5,-178"/>
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-<polygon fill="none" stroke="black" points="369.5,-178 369.5,-201 392.5,-201 392.5,-178 369.5,-178"/>
-<text text-anchor="start" x="373.5" y="-185.8" font-family="arial" font-size="14.00">4x</text>
-<polygon fill="none" stroke="black" points="392.5,-178 392.5,-201 524.5,-201 524.5,-178 392.5,-178"/>
-<text text-anchor="start" x="396.5" y="-185.8" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
-<polygon fill="none" stroke="black" points="524.5,-178 524.5,-201 554.5,-201 554.5,-178 524.5,-178"/>
-<text text-anchor="start" x="528.5" y="-185.8" font-family="arial" font-size="14.00">+ S</text>
-<polygon fill="none" stroke="black" points="554.5,-178 554.5,-201 597.5,-201 597.5,-178 554.5,-178"/>
-<text text-anchor="start" x="558.5" y="-185.8" font-family="arial" font-size="14.00">0.2 m</text>
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-<text text-anchor="start" x="452.5" y="-145.8" font-family="arial" font-size="14.00">BN</text>
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-<text text-anchor="start" x="356" y="-120.8" font-family="arial" font-size="14.00">X1:2</text>
-<text text-anchor="start" x="452" y="-120.8" font-family="arial" font-size="14.00">RD</text>
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-<polygon fill="#000000" stroke="transparent" points="326.5,-113 326.5,-115 597.5,-115 597.5,-113 326.5,-113"/>
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-<text text-anchor="start" x="368" y="-5.8" font-family="arial" font-size="14.00"> </text>
+<polygon fill="#ffffff" stroke="black" points="604,-224 331,-224 331,0 604,0 604,-224"/>
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+<polygon fill="none" stroke="black" points="331.5,-178 331.5,-201 375.5,-201 375.5,-178 331.5,-178"/>
+<text text-anchor="start" x="335.5" y="-185.8" font-family="arial" font-size="14.00">Serial</text>
+<polygon fill="none" stroke="black" points="375.5,-178 375.5,-201 398.5,-201 398.5,-178 375.5,-178"/>
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+<polygon fill="none" stroke="black" points="398.5,-178 398.5,-201 530.5,-201 530.5,-178 398.5,-178"/>
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+<text text-anchor="start" x="534.5" y="-185.8" font-family="arial" font-size="14.00">+ S</text>
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+<text text-anchor="start" x="564.5" y="-185.8" font-family="arial" font-size="14.00">0.2 m</text>
+<text text-anchor="start" x="374.5" y="-164.8" font-family="arial" font-size="14.00"> </text>
+<text text-anchor="start" x="344.5" y="-145.8" font-family="arial" font-size="14.00">X1:1:GND</text>
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+<text text-anchor="start" x="528" y="-145.8" font-family="arial" font-size="14.00">X2:1:GND</text>
+<polygon fill="#000000" stroke="transparent" points="331.5,-138 331.5,-140 604.5,-140 604.5,-138 331.5,-138"/>
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+<text text-anchor="start" x="345" y="-120.8" font-family="arial" font-size="14.00">X1:2:VCC</text>
+<text text-anchor="start" x="435" y="-120.8" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;2:RD &#160;&#160;&#160;</text>
+<text text-anchor="start" x="528.5" y="-120.8" font-family="arial" font-size="14.00">X2:2:VCC</text>
+<polygon fill="#000000" stroke="transparent" points="331.5,-113 331.5,-115 604.5,-115 604.5,-113 331.5,-113"/>
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+<text text-anchor="start" x="350" y="-95.8" font-family="arial" font-size="14.00">X1:3:RX</text>
+<text text-anchor="start" x="434" y="-95.8" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;3:OG &#160;&#160;&#160;</text>
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+<text text-anchor="start" x="351" y="-70.8" font-family="arial" font-size="14.00">X1:4:TX</text>
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+<text text-anchor="start" x="533.5" y="-70.8" font-family="arial" font-size="14.00">X2:3:RX</text>
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-<path fill="none" stroke="#ff8000" stroke-width="2" d="M597,-87C661.68,-87 676.32,-66 741,-66"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M597,-89C663.32,-88.14 677.96,-67.14 741,-68"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M604,-85C667.04,-85.86 681.68,-64.86 748,-64"/>
+<path fill="none" stroke="#ff8000" stroke-width="2" d="M604,-87C668.68,-87 683.32,-66 748,-66"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M604,-89C670.32,-88.14 684.96,-67.14 748,-68"/>
 </g>
 <!-- W1&#45;&#45;X2 -->
 <g id="edge8" class="edge">
 <title>W1:e&#45;&#45;X2:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M597,-60C663.9,-61.09 677.67,-88.09 741,-87"/>
-<path fill="none" stroke="#ffff00" stroke-width="2" d="M597,-62C662.12,-62 675.88,-89 741,-89"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M597,-64C660.33,-62.91 674.1,-89.91 741,-91"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M604,-60C670.9,-61.09 684.67,-88.09 748,-87"/>
+<path fill="none" stroke="#ffff00" stroke-width="2" d="M604,-62C669.12,-62 682.88,-89 748,-89"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M604,-64C667.33,-62.91 681.1,-89.91 748,-91"/>
 </g>
 </g>
 </svg>
diff --git a/examples/ex02.bom.tsv b/examples/ex02.bom.tsv
index 67cb7f0f..8cd97d83 100644
--- a/examples/ex02.bom.tsv
+++ b/examples/ex02.bom.tsv
@@ -1,5 +1,5 @@
-Item	Qty	Unit	Designators
-Connector, Molex Micro-Fit, female, 2 pins	3		X2, X3, X4
-Connector, Molex Micro-Fit, male, 2 pins	1		X1
-Cable, 2 x 0.25 mm²	0.4	m	W1, W2
-Cable, 2 x 20 AWG	0.2	m	W3
+Id	Description	Qty	Unit	Designators
+1	Cable, 2 x 0.25 mm²	0.4	m	W1, W2
+2	Cable, 2 x 20 AWG	0.2	m	W3
+3	Connector, Molex Micro-Fit, female, 2 pins	3		X2, X3, X4
+4	Connector, Molex Micro-Fit, male, 2 pins	1		X1
diff --git a/examples/ex02.gv b/examples/ex02.gv
index 66e29586..11fae02f 100644
--- a/examples/ex02.gv
+++ b/examples/ex02.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -31,7 +31,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -59,7 +59,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X3 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -87,7 +87,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X4 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -115,7 +115,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#000000:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -140,9 +140,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     1:BK
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -154,9 +156,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X2:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     2:RD
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -171,7 +175,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#000000:#000000"]
 	X1:p1r:e -- W2:w1:w
 	W2:w1:e -- X3:p1l:w
@@ -196,9 +200,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X3:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     1:BK
+    </td>
+    <td>X3:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -210,9 +216,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X3:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     2:RD
+    </td>
+    <td>X3:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -227,7 +235,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#000000:#000000"]
 	X1:p1r:e -- W3:w1:w
 	W3:w1:e -- X4:p1l:w
@@ -252,9 +260,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X4:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     1:BK
+    </td>
+    <td>X4:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -266,9 +276,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X4:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     2:RD
+    </td>
+    <td>X4:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -283,5 +295,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 }
diff --git a/examples/ex02.html b/examples/ex02.html
index 7067bb6a..51dbe583 100644
--- a/examples/ex02.html
+++ b/examples/ex02.html
@@ -1,266 +1,306 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
- <title>WireViz Diagram and BOM</title>
-</head><body style="font-family:Arial">
-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>ex02</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>ex02</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
  -->
 <!-- Pages: 1 -->
-<svg width="865pt" height="458pt"
- viewBox="0.00 0.00 865.00 458.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<svg width="881pt" height="458pt"
+ viewBox="0.00 0.00 881.00 458.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
 <g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 454)">
-<polygon fill="white" stroke="transparent" points="-4,4 -4,-454 861,-454 861,4 -4,4"/>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-454 877,-454 877,4 -4,4"/>
 <!-- X1 -->
 <g id="node1" class="node">
 <title>X1</title>
-<polygon fill="white" stroke="transparent" points="180,-262 0,-262 0,-170 180,-170 180,-262"/>
-<polygon fill="none" stroke="black" points="0,-239 0,-262 180,-262 180,-239 0,-239"/>
-<text text-anchor="start" x="81.5" y="-246.8" font-family="arial" font-size="14.00">X1</text>
-<polygon fill="none" stroke="black" points="0,-216 0,-239 102,-239 102,-216 0,-216"/>
-<text text-anchor="start" x="4" y="-223.8" font-family="arial" font-size="14.00">Molex Micro&#45;Fit</text>
-<polygon fill="none" stroke="black" points="102,-216 102,-239 141,-239 141,-216 102,-216"/>
-<text text-anchor="start" x="106" y="-223.8" font-family="arial" font-size="14.00">male</text>
-<polygon fill="none" stroke="black" points="141,-216 141,-239 180,-239 180,-216 141,-216"/>
-<text text-anchor="start" x="145" y="-223.8" font-family="arial" font-size="14.00">2&#45;pin</text>
-<polygon fill="none" stroke="black" points="0,-193 0,-216 102,-216 102,-193 0,-193"/>
-<text text-anchor="start" x="35.5" y="-200.8" font-family="arial" font-size="14.00">GND</text>
-<polygon fill="none" stroke="black" points="102,-193 102,-216 180,-216 180,-193 102,-193"/>
-<text text-anchor="start" x="137" y="-200.8" font-family="arial" font-size="14.00">1</text>
-<polygon fill="none" stroke="black" points="0,-170 0,-193 102,-193 102,-170 0,-170"/>
-<text text-anchor="start" x="36.5" y="-177.8" font-family="arial" font-size="14.00">VCC</text>
-<polygon fill="none" stroke="black" points="102,-170 102,-193 180,-193 180,-170 102,-170"/>
-<text text-anchor="start" x="137" y="-177.8" font-family="arial" font-size="14.00">2</text>
+<polygon fill="#ffffff" stroke="black" points="183,-262 0,-262 0,-170 183,-170 183,-262"/>
+<polygon fill="none" stroke="black" points="0.5,-239 0.5,-262 183.5,-262 183.5,-239 0.5,-239"/>
+<text text-anchor="start" x="83" y="-246.8" font-family="arial" font-size="14.00">X1</text>
+<polygon fill="none" stroke="black" points="0.5,-216 0.5,-239 104.5,-239 104.5,-216 0.5,-216"/>
+<text text-anchor="start" x="4.5" y="-223.8" font-family="arial" font-size="14.00">Molex Micro&#45;Fit</text>
+<polygon fill="none" stroke="black" points="104.5,-216 104.5,-239 143.5,-239 143.5,-216 104.5,-216"/>
+<text text-anchor="start" x="108.5" y="-223.8" font-family="arial" font-size="14.00">male</text>
+<polygon fill="none" stroke="black" points="143.5,-216 143.5,-239 183.5,-239 183.5,-216 143.5,-216"/>
+<text text-anchor="start" x="147.5" y="-223.8" font-family="arial" font-size="14.00">2&#45;pin</text>
+<polygon fill="none" stroke="black" points="0.5,-193 0.5,-216 104.5,-216 104.5,-193 0.5,-193"/>
+<text text-anchor="start" x="36.5" y="-200.8" font-family="arial" font-size="14.00">GND</text>
+<polygon fill="none" stroke="black" points="104.5,-193 104.5,-216 183.5,-216 183.5,-193 104.5,-193"/>
+<text text-anchor="start" x="140" y="-200.8" font-family="arial" font-size="14.00">1</text>
+<polygon fill="none" stroke="black" points="0.5,-170 0.5,-193 104.5,-193 104.5,-170 0.5,-170"/>
+<text text-anchor="start" x="37.5" y="-177.8" font-family="arial" font-size="14.00">VCC</text>
+<polygon fill="none" stroke="black" points="104.5,-170 104.5,-193 183.5,-193 183.5,-170 104.5,-170"/>
+<text text-anchor="start" x="140" y="-177.8" font-family="arial" font-size="14.00">2</text>
 </g>
 <!-- W1 -->
 <g id="node5" class="node">
 <title>W1</title>
-<polygon fill="none" stroke="black" points="522,-450 324,-450 324,-316 522,-316 522,-450"/>
-<polygon fill="none" stroke="black" points="324,-427 324,-450 522,-450 522,-427 324,-427"/>
-<text text-anchor="start" x="412" y="-434.8" font-family="arial" font-size="14.00">W1</text>
-<polygon fill="none" stroke="black" points="324,-404 324,-427 347,-427 347,-404 324,-404"/>
-<text text-anchor="start" x="328" y="-411.8" font-family="arial" font-size="14.00">2x</text>
-<polygon fill="none" stroke="black" points="347,-404 347,-427 479,-427 479,-404 347,-404"/>
-<text text-anchor="start" x="351" y="-411.8" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
-<polygon fill="none" stroke="black" points="479,-404 479,-427 522,-427 522,-404 479,-404"/>
-<text text-anchor="start" x="483" y="-411.8" font-family="arial" font-size="14.00">0.2 m</text>
-<text text-anchor="start" x="356.5" y="-390.8" font-family="arial" font-size="14.00"> </text>
-<text text-anchor="start" x="344.5" y="-371.8" font-family="arial" font-size="14.00">X1:1</text>
-<text text-anchor="start" x="414" y="-371.8" font-family="arial" font-size="14.00">BK</text>
-<text text-anchor="start" x="474" y="-371.8" font-family="arial" font-size="14.00">X2:1</text>
-<polygon fill="#000000" stroke="transparent" points="324,-364 324,-366 522,-366 522,-364 324,-364"/>
-<polygon fill="#000000" stroke="transparent" points="324,-362 324,-364 522,-364 522,-362 324,-362"/>
-<polygon fill="#000000" stroke="transparent" points="324,-360 324,-362 522,-362 522,-360 324,-360"/>
-<text text-anchor="start" x="344.5" y="-346.8" font-family="arial" font-size="14.00">X1:2</text>
-<text text-anchor="start" x="413.5" y="-346.8" font-family="arial" font-size="14.00">RD</text>
-<text text-anchor="start" x="474" y="-346.8" font-family="arial" font-size="14.00">X2:2</text>
-<polygon fill="#000000" stroke="transparent" points="324,-339 324,-341 522,-341 522,-339 324,-339"/>
-<polygon fill="#ff0000" stroke="transparent" points="324,-337 324,-339 522,-339 522,-337 324,-337"/>
-<polygon fill="#000000" stroke="transparent" points="324,-335 324,-337 522,-337 522,-335 324,-335"/>
-<text text-anchor="start" x="356.5" y="-321.8" font-family="arial" font-size="14.00"> </text>
+<polygon fill="#ffffff" stroke="black" points="534,-450 327,-450 327,-316 534,-316 534,-450"/>
+<polygon fill="none" stroke="black" points="327.5,-427 327.5,-450 534.5,-450 534.5,-427 327.5,-427"/>
+<text text-anchor="start" x="420.5" y="-434.8" font-family="arial" font-size="14.00">W1</text>
+<polygon fill="none" stroke="black" points="327.5,-404 327.5,-427 353.5,-427 353.5,-404 327.5,-404"/>
+<text text-anchor="start" x="333" y="-411.8" font-family="arial" font-size="14.00">2x</text>
+<polygon fill="none" stroke="black" points="353.5,-404 353.5,-427 488.5,-427 488.5,-404 353.5,-404"/>
+<text text-anchor="start" x="359" y="-411.8" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
+<polygon fill="none" stroke="black" points="488.5,-404 488.5,-427 534.5,-427 534.5,-404 488.5,-404"/>
+<text text-anchor="start" x="493.5" y="-411.8" font-family="arial" font-size="14.00">0.2 m</text>
+<text text-anchor="start" x="359.5" y="-390.8" font-family="arial" font-size="14.00"> </text>
+<text text-anchor="start" x="329.5" y="-371.8" font-family="arial" font-size="14.00">X1:1:GND</text>
+<text text-anchor="start" x="398" y="-371.8" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;1:BK &#160;&#160;&#160;</text>
+<text text-anchor="start" x="468.5" y="-371.8" font-family="arial" font-size="14.00">X2:1:GND</text>
+<polygon fill="#000000" stroke="transparent" points="327.5,-364 327.5,-366 534.5,-366 534.5,-364 327.5,-364"/>
+<polygon fill="#000000" stroke="transparent" points="327.5,-362 327.5,-364 534.5,-364 534.5,-362 327.5,-362"/>
+<polygon fill="#000000" stroke="transparent" points="327.5,-360 327.5,-362 534.5,-362 534.5,-360 327.5,-360"/>
+<text text-anchor="start" x="330" y="-346.8" font-family="arial" font-size="14.00">X1:2:VCC</text>
+<text text-anchor="start" x="397.5" y="-346.8" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;2:RD &#160;&#160;&#160;</text>
+<text text-anchor="start" x="469" y="-346.8" font-family="arial" font-size="14.00">X2:2:VCC</text>
+<polygon fill="#000000" stroke="transparent" points="327.5,-339 327.5,-341 534.5,-341 534.5,-339 327.5,-339"/>
+<polygon fill="#ff0000" stroke="transparent" points="327.5,-337 327.5,-339 534.5,-339 534.5,-337 327.5,-337"/>
+<polygon fill="#000000" stroke="transparent" points="327.5,-335 327.5,-337 534.5,-337 534.5,-335 327.5,-335"/>
+<text text-anchor="start" x="359.5" y="-321.8" font-family="arial" font-size="14.00"> </text>
 </g>
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 <title>X1:e&#45;&#45;W1:w</title>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-204C275.34,-204 228.66,-363 324,-363"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-206C273.42,-203.44 226.74,-362.44 324,-365"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M183,-202C280.26,-204.56 233.58,-363.56 327,-361"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M183,-204C278.34,-204 231.66,-363 327,-363"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M183,-206C276.42,-203.44 229.74,-362.44 327,-365"/>
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 <g id="edge3" class="edge">
 <title>X1:e&#45;&#45;W1:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-179C276.6,-181.56 231.24,-338.56 324,-336"/>
-<path fill="none" stroke="#ff0000" stroke-width="2" d="M180,-181C274.68,-181 229.32,-338 324,-338"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-183C272.76,-180.44 227.4,-337.44 324,-340"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M183,-179C279.6,-181.56 234.24,-338.56 327,-336"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M183,-181C277.68,-181 232.32,-338 327,-338"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M183,-183C275.76,-180.44 230.4,-337.44 327,-340"/>
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 <g id="node6" class="node">
 <title>W2</title>
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-<polygon fill="none" stroke="black" points="324,-269 324,-292 522,-292 522,-269 324,-269"/>
-<text text-anchor="start" x="412" y="-276.8" font-family="arial" font-size="14.00">W2</text>
-<polygon fill="none" stroke="black" points="324,-246 324,-269 347,-269 347,-246 324,-246"/>
-<text text-anchor="start" x="328" y="-253.8" font-family="arial" font-size="14.00">2x</text>
-<polygon fill="none" stroke="black" points="347,-246 347,-269 479,-269 479,-246 347,-246"/>
-<text text-anchor="start" x="351" y="-253.8" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
-<polygon fill="none" stroke="black" points="479,-246 479,-269 522,-269 522,-246 479,-246"/>
-<text text-anchor="start" x="483" y="-253.8" font-family="arial" font-size="14.00">0.2 m</text>
-<text text-anchor="start" x="356.5" y="-232.8" font-family="arial" font-size="14.00"> </text>
-<text text-anchor="start" x="344.5" y="-213.8" font-family="arial" font-size="14.00">X1:1</text>
-<text text-anchor="start" x="414" y="-213.8" font-family="arial" font-size="14.00">BK</text>
-<text text-anchor="start" x="474" y="-213.8" font-family="arial" font-size="14.00">X3:1</text>
-<polygon fill="#000000" stroke="transparent" points="324,-206 324,-208 522,-208 522,-206 324,-206"/>
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-<polygon fill="#ff0000" stroke="transparent" points="324,-179 324,-181 522,-181 522,-179 324,-179"/>
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+<polygon fill="#000000" stroke="transparent" points="327.5,-204 327.5,-206 534.5,-206 534.5,-204 327.5,-204"/>
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+<polygon fill="#ff0000" stroke="transparent" points="327.5,-179 327.5,-181 534.5,-181 534.5,-179 327.5,-179"/>
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 <title>X1:e&#45;&#45;W2:w</title>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-204C244,-204 260,-205 324,-205"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M183,-204C247,-204 263,-205 327,-205"/>
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 <title>X1:e&#45;&#45;W2:w</title>
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-<path fill="none" stroke="#ff0000" stroke-width="2" d="M180,-181C244,-181 260,-180 324,-180"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-183C244.13,-183 260.12,-182 324,-182"/>
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+<path fill="none" stroke="#ff0000" stroke-width="2" d="M183,-181C247,-181 263,-180 327,-180"/>
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-<polygon fill="none" stroke="black" points="324,-88 324,-111 347,-111 347,-88 324,-88"/>
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-<polygon fill="#000000" stroke="transparent" points="324,-23 324,-25 522,-25 522,-23 324,-23"/>
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+<polygon fill="#000000" stroke="transparent" points="327.5,-46 327.5,-48 534.5,-48 534.5,-46 327.5,-46"/>
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+<polygon fill="#000000" stroke="transparent" points="327.5,-23 327.5,-25 534.5,-25 534.5,-23 327.5,-23"/>
+<polygon fill="#ff0000" stroke="transparent" points="327.5,-21 327.5,-23 534.5,-23 534.5,-21 327.5,-21"/>
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+<text text-anchor="start" x="767" y="-404.8" font-family="arial" font-size="14.00">X2</text>
+<polygon fill="none" stroke="black" points="678.5,-374 678.5,-397 782.5,-397 782.5,-374 678.5,-374"/>
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+</body></html>
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 <g id="node6" class="node">
 <title>W2</title>
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-<text text-anchor="start" x="351" y="-253.8" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
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-<text text-anchor="start" x="483" y="-253.8" font-family="arial" font-size="14.00">0.2 m</text>
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 <title>X1:e&#45;&#45;W2:w</title>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-204C244,-204 260,-205 324,-205"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-206C243.88,-206 259.87,-207 324,-207"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M183,-204C247,-204 263,-205 327,-205"/>
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 <!-- X1&#45;&#45;W2 -->
 <g id="edge7" class="edge">
 <title>X1:e&#45;&#45;W2:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-179C243.88,-179 259.87,-178 324,-178"/>
-<path fill="none" stroke="#ff0000" stroke-width="2" d="M180,-181C244,-181 260,-180 324,-180"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M180,-183C244.13,-183 260.12,-182 324,-182"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M183,-179C246.88,-179 262.87,-178 327,-178"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M183,-181C247,-181 263,-180 327,-180"/>
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-<polygon fill="none" stroke="black" points="324,-88 324,-111 347,-111 347,-88 324,-88"/>
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-<text text-anchor="start" x="351" y="-95.8" font-family="arial" font-size="14.00">20 AWG (0.75 mm²)</text>
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-<polygon fill="#000000" stroke="transparent" points="324,-23 324,-25 522,-25 522,-23 324,-23"/>
-<polygon fill="#ff0000" stroke="transparent" points="324,-21 324,-23 522,-23 522,-21 324,-21"/>
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+<text text-anchor="start" x="468.5" y="-55.8" font-family="arial" font-size="14.00">X4:1:GND</text>
+<polygon fill="#000000" stroke="transparent" points="327.5,-48 327.5,-50 534.5,-50 534.5,-48 327.5,-48"/>
+<polygon fill="#000000" stroke="transparent" points="327.5,-46 327.5,-48 534.5,-48 534.5,-46 327.5,-46"/>
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+<text text-anchor="start" x="330" y="-30.8" font-family="arial" font-size="14.00">X1:2:VCC</text>
+<text text-anchor="start" x="397.5" y="-30.8" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;2:RD &#160;&#160;&#160;</text>
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+<polygon fill="#000000" stroke="transparent" points="327.5,-23 327.5,-25 534.5,-25 534.5,-23 327.5,-23"/>
+<polygon fill="#ff0000" stroke="transparent" points="327.5,-21 327.5,-23 534.5,-23 534.5,-21 327.5,-21"/>
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 <title>X1:e&#45;&#45;W3:w</title>
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 <!-- X1&#45;&#45;W3 -->
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+<text text-anchor="start" x="717.5" y="-177.8" font-family="arial" font-size="14.00">2</text>
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 </g>
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 <g id="node4" class="node">
 <title>X4</title>
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+<polygon fill="#ffffff" stroke="black" points="873,-104 678,-104 678,-12 873,-12 873,-104"/>
+<polygon fill="none" stroke="black" points="678.5,-81 678.5,-104 873.5,-104 873.5,-81 678.5,-81"/>
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+<polygon fill="none" stroke="black" points="678.5,-58 678.5,-81 782.5,-81 782.5,-58 678.5,-58"/>
+<text text-anchor="start" x="682.5" y="-65.8" font-family="arial" font-size="14.00">Molex Micro&#45;Fit</text>
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+<text text-anchor="start" x="837.5" y="-65.8" font-family="arial" font-size="14.00">2&#45;pin</text>
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+<text text-anchor="start" x="717.5" y="-42.8" font-family="arial" font-size="14.00">1</text>
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+<text text-anchor="start" x="803" y="-42.8" font-family="arial" font-size="14.00">GND</text>
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+<text text-anchor="start" x="804" y="-19.8" font-family="arial" font-size="14.00">VCC</text>
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 <title>W1:e&#45;&#45;X2:w</title>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M534,-365C598.13,-365 614.12,-364 678,-364"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M534,-182C597.88,-182 613.87,-183 678,-183"/>
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 </svg>
diff --git a/examples/ex03.bom.tsv b/examples/ex03.bom.tsv
index 98d3491e..5bda765a 100644
--- a/examples/ex03.bom.tsv
+++ b/examples/ex03.bom.tsv
@@ -1,5 +1,5 @@
-Item	Qty	Unit	Designators
-Connector, Molex Micro-Fit, female, 2 pins	3		X2, X3, X4
-Connector, Molex Micro-Fit, male, 2 pins	1		X1
-Wire, 0.25 mm², BK	0.6	m	W1
-Wire, 0.25 mm², RD	0.6	m	W1
+Id	Description	Qty	Unit	Designators
+1	Connector, Molex Micro-Fit, female, 2 pins	3		X2, X3, X4
+2	Connector, Molex Micro-Fit, male, 2 pins	1		X1
+3	Wire, 0.25 mm², BK	0.6	m	W1
+4	Wire, 0.25 mm², RD	0.6	m	W1
diff --git a/examples/ex03.gv b/examples/ex03.gv
index 72cfc2da..0ffd10e7 100644
--- a/examples/ex03.gv
+++ b/examples/ex03.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -31,7 +31,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -59,7 +59,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X3 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -87,7 +87,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X4 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -115,7 +115,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#000000:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -152,9 +152,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     BK
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -166,9 +168,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X2:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     RD
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -180,9 +184,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X3:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     BK
+    </td>
+    <td>X3:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -194,9 +200,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X3:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     RD
+    </td>
+    <td>X3:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -208,9 +216,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:1</td>
-    <td>BK</td>
-    <td>X4:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     BK
+    </td>
+    <td>X4:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w5" height="6">
@@ -222,9 +232,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X4:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     RD
+    </td>
+    <td>X4:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w6" height="6">
@@ -239,5 +251,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 }
diff --git a/examples/ex03.html b/examples/ex03.html
index dba9e945..011b5cdf 100644
--- a/examples/ex03.html
+++ b/examples/ex03.html
@@ -1,236 +1,276 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
- <title>WireViz Diagram and BOM</title>
-</head><body style="font-family:Arial">
-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>ex03</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>ex03</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
  -->
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- viewBox="0.00 0.00 865.00 332.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<svg width="873pt" height="332pt"
+ viewBox="0.00 0.00 873.00 332.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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-<text text-anchor="start" x="137" y="-123.8" font-family="arial" font-size="14.00">2</text>
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+<text text-anchor="start" x="140" y="-123.8" font-family="arial" font-size="14.00">2</text>
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 <title>W1</title>
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+<polygon fill="none" stroke="black" points="670.5,-46 670.5,-69 774.5,-69 774.5,-46 670.5,-46"/>
+<text text-anchor="start" x="674.5" y="-53.8" font-family="arial" font-size="14.00">Molex Micro&#45;Fit</text>
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+<text text-anchor="start" x="778.5" y="-53.8" font-family="arial" font-size="14.00">female</text>
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+<text text-anchor="start" x="829.5" y="-53.8" font-family="arial" font-size="14.00">2&#45;pin</text>
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+<text text-anchor="start" x="709.5" y="-30.8" font-family="arial" font-size="14.00">1</text>
+<polygon fill="none" stroke="black" points="756.5,-23 756.5,-46 865.5,-46 865.5,-23 756.5,-23"/>
+<text text-anchor="start" x="795" y="-30.8" font-family="arial" font-size="14.00">GND</text>
+<polygon fill="none" stroke="black" points="670.5,0 670.5,-23 756.5,-23 756.5,0 670.5,0"/>
+<text text-anchor="start" x="709.5" y="-7.8" font-family="arial" font-size="14.00">2</text>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M522,-203C590.22,-201.11 593.78,-266.11 666,-268"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-199C598.22,-200.89 601.78,-265.89 670,-264"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-201C596.22,-201 599.78,-266 670,-266"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-203C594.22,-201.11 597.78,-266.11 670,-268"/>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M522,-178C590.59,-176.08 593.41,-243.08 666,-245"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-174C598.59,-175.92 601.41,-242.92 670,-241"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-178C594.59,-176.08 597.41,-243.08 670,-245"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-149C589.88,-149 605.87,-148 670,-148"/>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M522,-128C585.88,-128 601.87,-129 666,-129"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-124C590.13,-124 606.12,-125 670,-125"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M526,-126C590,-126 606,-127 670,-127"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-128C589.88,-128 605.87,-129 670,-129"/>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M522,-101C592.59,-101 595.41,-34 666,-34"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M522,-103C594.59,-101.08 597.41,-34.08 666,-36"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-99C594.59,-100.92 597.41,-33.92 670,-32"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-101C596.59,-101 599.41,-34 670,-34"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-103C598.59,-101.08 601.41,-34.08 670,-36"/>
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 <!-- W1&#45;&#45;X4 -->
 <g id="edge12" class="edge">
 <title>W1:e&#45;&#45;X4:w</title>
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-<path fill="none" stroke="#ff0000" stroke-width="2" d="M522,-76C592.22,-76 595.78,-11 666,-11"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M522,-78C594.22,-76.11 597.78,-11.11 666,-13"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-74C594.22,-75.89 597.78,-10.89 670,-9"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M526,-76C596.22,-76 599.78,-11 670,-11"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M526,-78C598.22,-76.11 601.78,-11.11 670,-13"/>
 </g>
 </g>
 </svg>
diff --git a/examples/ex04.bom.tsv b/examples/ex04.bom.tsv
index edee58d9..25de3330 100644
--- a/examples/ex04.bom.tsv
+++ b/examples/ex04.bom.tsv
@@ -1,8 +1,8 @@
-Item	Qty	Unit	Designators
-Connector, Crimp ferrule	12		
-Wire, 0.25 mm², BN	0.2	m	W1
-Wire, 0.25 mm², BU	0.2	m	W1
-Wire, 0.25 mm², GN	0.2	m	W1
-Wire, 0.25 mm², OG	0.2	m	W1
-Wire, 0.25 mm², RD	0.2	m	W1
-Wire, 0.25 mm², YE	0.2	m	W1
+Id	Description	Qty	Unit	Designators
+1	Connector, Crimp ferrule	12		
+2	Wire, 0.25 mm², BN	0.2	m	W1
+3	Wire, 0.25 mm², BU	0.2	m	W1
+4	Wire, 0.25 mm², GN	0.2	m	W1
+5	Wire, 0.25 mm², OG	0.2	m	W1
+6	Wire, 0.25 mm², RD	0.2	m	W1
+7	Wire, 0.25 mm², YE	0.2	m	W1
diff --git a/examples/ex04.gv b/examples/ex04.gv
index 0d34f1c3..d7bddcf2 100644
--- a/examples/ex04.gv
+++ b/examples/ex04.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	_ferrule_crimp_1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -12,7 +12,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -21,7 +21,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_3 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -30,7 +30,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_4 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -39,7 +39,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_5 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -48,7 +48,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_6 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -57,7 +57,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_7 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -66,7 +66,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_8 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -75,7 +75,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_9 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -84,7 +84,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_10 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -93,7 +93,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_11 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -102,7 +102,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	_ferrule_crimp_12 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -111,7 +111,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#895956:#000000"]
 	_ferrule_crimp_1:e -- W1:w1:w
 	W1:w1:e -- _ferrule_crimp_7:w
@@ -149,7 +149,9 @@ graph {
    <tr><td>&nbsp;</td></tr>
    <tr>
     <td></td>
-    <td>BN</td>
+    <td>
+     BN
+    </td>
     <td></td>
    </tr>
    <tr>
@@ -163,7 +165,9 @@ graph {
    </tr>
    <tr>
     <td></td>
-    <td>RD</td>
+    <td>
+     RD
+    </td>
     <td></td>
    </tr>
    <tr>
@@ -177,7 +181,9 @@ graph {
    </tr>
    <tr>
     <td></td>
-    <td>OG</td>
+    <td>
+     OG
+    </td>
     <td></td>
    </tr>
    <tr>
@@ -191,7 +197,9 @@ graph {
    </tr>
    <tr>
     <td></td>
-    <td>YE</td>
+    <td>
+     YE
+    </td>
     <td></td>
    </tr>
    <tr>
@@ -205,7 +213,9 @@ graph {
    </tr>
    <tr>
     <td></td>
-    <td>GN</td>
+    <td>
+     GN
+    </td>
     <td></td>
    </tr>
    <tr>
@@ -219,7 +229,9 @@ graph {
    </tr>
    <tr>
     <td></td>
-    <td>BU</td>
+    <td>
+     BU
+    </td>
     <td></td>
    </tr>
    <tr>
@@ -235,5 +247,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 }
diff --git a/examples/ex04.html b/examples/ex04.html
index 4d746fa2..a1e3e39f 100644
--- a/examples/ex04.html
+++ b/examples/ex04.html
@@ -1,224 +1,285 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
- <title>WireViz Diagram and BOM</title>
-</head><body style="font-family:Arial">
-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>ex04</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>ex04</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
  -->
 <!-- Pages: 1 -->
-<svg width="668pt" height="344pt"
- viewBox="0.00 0.00 668.00 344.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 340)">
-<polygon fill="white" stroke="transparent" points="-4,4 -4,-340 664,-340 664,4 -4,4"/>
+<svg width="673pt" height="287pt"
+ viewBox="0.00 0.00 673.00 286.50" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 282.5)">
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-282.5 669,-282.5 669,4 -4,4"/>
 <!-- _ferrule_crimp_1 -->
 <g id="node1" class="node">
 <title>_ferrule_crimp_1</title>
-<polygon fill="white" stroke="transparent" points="87,-336 0,-336 0,-300 87,-300 87,-336"/>
-<polygon fill="none" stroke="black" points="0.5,-306 0.5,-329 87.5,-329 87.5,-306 0.5,-306"/>
-<text text-anchor="start" x="4.5" y="-313.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="#ffffff" stroke="black" points="89,-258 0,-258 0,-235 89,-235 89,-258"/>
+<polygon fill="none" stroke="black" points="0.5,-234.5 0.5,-257.5 89.5,-257.5 89.5,-234.5 0.5,-234.5"/>
+<text text-anchor="start" x="4.5" y="-242.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
 </g>
 <!-- W1 -->
 <g id="node13" class="node">
 <title>W1</title>
-<polygon fill="white" stroke="black" stroke-dasharray="5,2" points="429,-317 231,-317 231,-83 429,-83 429,-317"/>
-<polygon fill="none" stroke="black" points="231,-294 231,-317 429,-317 429,-294 231,-294"/>
-<text text-anchor="start" x="319" y="-301.8" font-family="arial" font-size="14.00">W1</text>
-<polygon fill="none" stroke="black" points="231,-271 231,-294 254,-294 254,-271 231,-271"/>
-<text text-anchor="start" x="235" y="-278.8" font-family="arial" font-size="14.00">6x</text>
-<polygon fill="none" stroke="black" points="254,-271 254,-294 386,-294 386,-271 254,-271"/>
-<text text-anchor="start" x="258" y="-278.8" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
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-<text text-anchor="start" x="390" y="-278.8" font-family="arial" font-size="14.00">0.2 m</text>
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-<polygon fill="#000000" stroke="transparent" points="231,-206 231,-208 429,-208 429,-206 231,-206"/>
-<polygon fill="#ff0000" stroke="transparent" points="231,-204 231,-206 429,-206 429,-204 231,-204"/>
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-<polygon fill="#000000" stroke="transparent" points="231,-131 231,-133 429,-133 429,-131 231,-131"/>
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-<polygon fill="#000000" stroke="transparent" points="231,-106 231,-108 429,-108 429,-106 231,-106"/>
-<polygon fill="#0066ff" stroke="transparent" points="231,-104 231,-106 429,-106 429,-104 231,-104"/>
-<polygon fill="#000000" stroke="transparent" points="231,-102 231,-104 429,-104 429,-102 231,-102"/>
-<text text-anchor="start" x="259.5" y="-88.8" font-family="arial" font-size="14.00"> </text>
+<polygon fill="#ffffff" stroke="black" stroke-dasharray="5,2" points="432,-278.5 233,-278.5 233,-44.5 432,-44.5 432,-278.5"/>
+<polygon fill="none" stroke="black" points="233.5,-255.5 233.5,-278.5 432.5,-278.5 432.5,-255.5 233.5,-255.5"/>
+<text text-anchor="start" x="322.5" y="-263.3" font-family="arial" font-size="14.00">W1</text>
+<polygon fill="none" stroke="black" points="233.5,-232.5 233.5,-255.5 256.5,-255.5 256.5,-232.5 233.5,-232.5"/>
+<text text-anchor="start" x="237.5" y="-240.3" font-family="arial" font-size="14.00">6x</text>
+<polygon fill="none" stroke="black" points="256.5,-232.5 256.5,-255.5 388.5,-255.5 388.5,-232.5 256.5,-232.5"/>
+<text text-anchor="start" x="260.5" y="-240.3" font-family="arial" font-size="14.00">0.25 mm² (24 AWG)</text>
+<polygon fill="none" stroke="black" points="388.5,-232.5 388.5,-255.5 432.5,-255.5 432.5,-232.5 388.5,-232.5"/>
+<text text-anchor="start" x="392.5" y="-240.3" font-family="arial" font-size="14.00">0.2 m</text>
+<text text-anchor="start" x="256.5" y="-219.3" font-family="arial" font-size="14.00"> </text>
+<text text-anchor="start" x="307.5" y="-200.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;BN &#160;&#160;&#160;</text>
+<polygon fill="#000000" stroke="transparent" points="233.5,-192.5 233.5,-194.5 432.5,-194.5 432.5,-192.5 233.5,-192.5"/>
+<polygon fill="#895956" stroke="transparent" points="233.5,-190.5 233.5,-192.5 432.5,-192.5 432.5,-190.5 233.5,-190.5"/>
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\ No newline at end of file
+<h2>Bill of Materials</h2>
+<table style="border:1px solid #000000; font-size: 14pt; border-spacing: 0px">
+ <tr>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Id</th>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Description</th>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Qty</th>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Unit</th>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Designators</th>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">1</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, Crimp ferrule</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">12</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">2</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, BN</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">3</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, BU</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">4</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, GN</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">5</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, OG</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">6</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, RD</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">7</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, YE</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1</td>
+ </tr>
+</table>
+</body></html>
diff --git a/examples/ex04.png b/examples/ex04.png
index 81f89ba2..d4bdd8a5 100644
Binary files a/examples/ex04.png and b/examples/ex04.png differ
diff --git a/examples/ex04.svg b/examples/ex04.svg
index b6a17029..19174c3d 100644
--- a/examples/ex04.svg
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 <title>_ferrule_crimp_4:e&#45;&#45;W1:w</title>
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 </g>
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 <g id="node5" class="node">
 <title>_ferrule_crimp_5</title>
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-<polygon fill="none" stroke="black" points="0.5,-66 0.5,-89 87.5,-89 87.5,-66 0.5,-66"/>
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 </g>
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 <g id="node6" class="node">
 <title>_ferrule_crimp_6</title>
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-<polygon fill="none" stroke="black" points="0.5,-6 0.5,-29 87.5,-29 87.5,-6 0.5,-6"/>
-<text text-anchor="start" x="4.5" y="-13.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
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+<polygon fill="none" stroke="black" points="0.5,0.5 0.5,-22.5 89.5,-22.5 89.5,0.5 0.5,0.5"/>
+<text text-anchor="start" x="4.5" y="-7.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
 </g>
 <!-- _ferrule_crimp_6&#45;&#45;W1 -->
 <g id="edge11" class="edge">
 <title>_ferrule_crimp_6:e&#45;&#45;W1:w</title>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M87,-20C159.78,-17.87 154.23,-104.87 231,-107"/>
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 </g>
 <!-- _ferrule_crimp_7 -->
 <g id="node7" class="node">
 <title>_ferrule_crimp_7</title>
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-<polygon fill="none" stroke="black" points="573.5,-306 573.5,-329 660.5,-329 660.5,-306 573.5,-306"/>
-<text text-anchor="start" x="577.5" y="-313.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
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+<polygon fill="none" stroke="black" points="576.5,-234.5 576.5,-257.5 665.5,-257.5 665.5,-234.5 576.5,-234.5"/>
+<text text-anchor="start" x="580.5" y="-242.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
 </g>
 <!-- _ferrule_crimp_8 -->
 <g id="node8" class="node">
 <title>_ferrule_crimp_8</title>
-<polygon fill="white" stroke="transparent" points="660,-276 573,-276 573,-240 660,-240 660,-276"/>
-<polygon fill="none" stroke="black" points="573.5,-246 573.5,-269 660.5,-269 660.5,-246 573.5,-246"/>
-<text text-anchor="start" x="577.5" y="-253.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="#ffffff" stroke="black" points="665,-211 576,-211 576,-188 665,-188 665,-211"/>
+<polygon fill="none" stroke="black" points="576.5,-187.5 576.5,-210.5 665.5,-210.5 665.5,-187.5 576.5,-187.5"/>
+<text text-anchor="start" x="580.5" y="-195.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
 </g>
 <!-- _ferrule_crimp_9 -->
 <g id="node9" class="node">
 <title>_ferrule_crimp_9</title>
-<polygon fill="white" stroke="transparent" points="660,-216 573,-216 573,-180 660,-180 660,-216"/>
-<polygon fill="none" stroke="black" points="573.5,-186 573.5,-209 660.5,-209 660.5,-186 573.5,-186"/>
-<text text-anchor="start" x="577.5" y="-193.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="#ffffff" stroke="black" points="665,-164 576,-164 576,-141 665,-141 665,-164"/>
+<polygon fill="none" stroke="black" points="576.5,-140.5 576.5,-163.5 665.5,-163.5 665.5,-140.5 576.5,-140.5"/>
+<text text-anchor="start" x="580.5" y="-148.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
 </g>
 <!-- _ferrule_crimp_10 -->
 <g id="node10" class="node">
 <title>_ferrule_crimp_10</title>
-<polygon fill="white" stroke="transparent" points="660,-156 573,-156 573,-120 660,-120 660,-156"/>
-<polygon fill="none" stroke="black" points="573.5,-126 573.5,-149 660.5,-149 660.5,-126 573.5,-126"/>
-<text text-anchor="start" x="577.5" y="-133.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="#ffffff" stroke="black" points="665,-117 576,-117 576,-94 665,-94 665,-117"/>
+<polygon fill="none" stroke="black" points="576.5,-93.5 576.5,-116.5 665.5,-116.5 665.5,-93.5 576.5,-93.5"/>
+<text text-anchor="start" x="580.5" y="-101.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
 </g>
 <!-- _ferrule_crimp_11 -->
 <g id="node11" class="node">
 <title>_ferrule_crimp_11</title>
-<polygon fill="white" stroke="transparent" points="660,-96 573,-96 573,-60 660,-60 660,-96"/>
-<polygon fill="none" stroke="black" points="573.5,-66 573.5,-89 660.5,-89 660.5,-66 573.5,-66"/>
-<text text-anchor="start" x="577.5" y="-73.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="#ffffff" stroke="black" points="665,-70 576,-70 576,-47 665,-47 665,-70"/>
+<polygon fill="none" stroke="black" points="576.5,-46.5 576.5,-69.5 665.5,-69.5 665.5,-46.5 576.5,-46.5"/>
+<text text-anchor="start" x="580.5" y="-54.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
 </g>
 <!-- _ferrule_crimp_12 -->
 <g id="node12" class="node">
 <title>_ferrule_crimp_12</title>
-<polygon fill="white" stroke="transparent" points="660,-36 573,-36 573,0 660,0 660,-36"/>
-<polygon fill="none" stroke="black" points="573.5,-6 573.5,-29 660.5,-29 660.5,-6 573.5,-6"/>
-<text text-anchor="start" x="577.5" y="-13.8" font-family="arial" font-size="14.00">Crimp ferrule</text>
+<polygon fill="#ffffff" stroke="black" points="665,-23 576,-23 576,0 665,0 665,-23"/>
+<polygon fill="none" stroke="black" points="576.5,0.5 576.5,-22.5 665.5,-22.5 665.5,0.5 576.5,0.5"/>
+<text text-anchor="start" x="580.5" y="-7.3" font-family="arial" font-size="14.00">Crimp ferrule</text>
 </g>
 <!-- W1&#45;&#45;_ferrule_crimp_7 -->
 <g id="edge2" class="edge">
 <title>W1:e&#45;&#45;_ferrule_crimp_7:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M429,-228C506,-230.14 499.99,-318.14 573,-316"/>
-<path fill="none" stroke="#895956" stroke-width="2" d="M429,-230C504,-230 498,-318 573,-318"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M429,-232C502.01,-229.86 496,-317.86 573,-320"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M432,-189.5C502.49,-191.25 509.47,-246.25 576,-244.5"/>
+<path fill="none" stroke="#895956" stroke-width="2" d="M432,-191.5C500.51,-191.5 507.49,-246.5 576,-246.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M432,-193.5C498.53,-191.75 505.51,-246.75 576,-248.5"/>
 </g>
 <!-- W1&#45;&#45;_ferrule_crimp_8 -->
 <g id="edge4" class="edge">
 <title>W1:e&#45;&#45;_ferrule_crimp_8:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M429,-203C499.18,-204.72 506.78,-257.72 573,-256"/>
-<path fill="none" stroke="#ff0000" stroke-width="2" d="M429,-205C497.2,-205 504.8,-258 573,-258"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M429,-207C495.22,-205.28 502.82,-258.28 573,-260"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M432,-164.5C499.53,-165.78 512.21,-198.78 576,-197.5"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M432,-168.5C495.79,-167.22 508.47,-200.22 576,-201.5"/>
 </g>
 <!-- W1&#45;&#45;_ferrule_crimp_9 -->
 <g id="edge6" class="edge">
 <title>W1:e&#45;&#45;_ferrule_crimp_9:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M429,-178C495.03,-178.72 510.04,-196.72 573,-196"/>
-<path fill="none" stroke="#ff8000" stroke-width="2" d="M429,-180C493.5,-180 508.5,-198 573,-198"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M432,-143.5C495.04,-143.14 510.66,-154.14 576,-154.5"/>
 </g>
 <!-- W1&#45;&#45;_ferrule_crimp_10 -->
 <g id="edge8" class="edge">
 <title>W1:e&#45;&#45;_ferrule_crimp_10:w</title>
-<path fill="none" stroke="#000000" stroke-width="2" d="M429,-153C491.95,-153.67 507.06,-136.67 573,-136"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M432,-118.5C497.34,-118.14 512.96,-107.14 576,-107.5"/>
 </g>
 <!-- W1&#45;&#45;_ferrule_crimp_11 -->
 <g id="edge10" class="edge">
 <title>W1:e&#45;&#45;_ferrule_crimp_11:w</title>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M432,-93.5C499.53,-92.22 512.21,-59.22 576,-60.5"/>
 </g>
 <!-- W1&#45;&#45;_ferrule_crimp_12 -->
 <g id="edge12" class="edge">
 <title>W1:e&#45;&#45;_ferrule_crimp_12:w</title>
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diff --git a/examples/ex05.bom.tsv b/examples/ex05.bom.tsv
index 99133286..384e4440 100644
--- a/examples/ex05.bom.tsv
+++ b/examples/ex05.bom.tsv
@@ -1,6 +1,6 @@
-Item	Qty	Unit	Designators
-Connector, Molex KK 254, female, 4 pins	3		X1, X2, X3
-Wire, I2C, 0.25 mm², PK	0.4	m	W1, W2
-Wire, I2C, 0.25 mm², TQ	0.4	m	W1, W2
-Wire, I2C, 0.25 mm², VT	0.4	m	W1, W2
-Wire, I2C, 0.25 mm², YE	0.4	m	W1, W2
+Id	Description	Qty	Unit	Designators
+1	Connector, Molex KK 254, female, 4 pins	3		X1, X2, X3
+2	Wire, I2C, 0.25 mm², PK	0.4	m	W1, W2
+3	Wire, I2C, 0.25 mm², TQ	0.4	m	W1, W2
+4	Wire, I2C, 0.25 mm², VT	0.4	m	W1, W2
+5	Wire, I2C, 0.25 mm², YE	0.4	m	W1, W2
diff --git a/examples/ex05.gv b/examples/ex05.gv
index 51f2e155..6bdff442 100644
--- a/examples/ex05.gv
+++ b/examples/ex05.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -39,7 +39,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -79,7 +79,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X3 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -115,7 +115,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ff66cc:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -147,9 +147,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>PK</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     PK
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -161,9 +163,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>TQ</td>
-    <td>X2:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     TQ
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -175,9 +179,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>YE</td>
-    <td>X2:3</td>
+    <td>X1:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X2:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -189,9 +195,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:4</td>
-    <td>VT</td>
-    <td>X2:4</td>
+    <td>X1:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X2:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -206,7 +214,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#ff66cc:#000000"]
 	X2:p1r:e -- W2:w1:w
 	W2:w1:e -- X3:p1l:w
@@ -238,9 +246,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X2:1</td>
-    <td>PK</td>
-    <td>X3:1</td>
+    <td>X2:1:GND</td>
+    <td>
+     PK
+    </td>
+    <td>X3:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -252,9 +262,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X2:2</td>
-    <td>TQ</td>
-    <td>X3:2</td>
+    <td>X2:2:VCC</td>
+    <td>
+     TQ
+    </td>
+    <td>X3:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -266,9 +278,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X2:3</td>
-    <td>YE</td>
-    <td>X3:3</td>
+    <td>X2:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X3:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -280,9 +294,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X2:4</td>
-    <td>VT</td>
-    <td>X3:4</td>
+    <td>X2:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X3:4:SDA</td>
    </tr>
    <tr>
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@@ -297,5 +313,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 }
diff --git a/examples/ex05.html b/examples/ex05.html
index 4747bd9c..7865b886 100644
--- a/examples/ex05.html
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@@ -1,306 +1,353 @@
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diff --git a/examples/ex05.png b/examples/ex05.png
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diff --git a/examples/ex06.bom.tsv b/examples/ex06.bom.tsv
index 7885f329..0c3d0dd2 100644
--- a/examples/ex06.bom.tsv
+++ b/examples/ex06.bom.tsv
@@ -1,6 +1,6 @@
-Item	Qty	Unit	Designators
-Connector, Molex KK 254, female, 4 pins	6		X1, X2, X3, X4, X5, X6
-Wire, 0.25 mm², PK	1.0	m	W1, W2, W3, W4, W5
-Wire, 0.25 mm², TQ	1.0	m	W1, W2, W3, W4, W5
-Wire, 0.25 mm², VT	1.0	m	W1, W2, W3, W4, W5
-Wire, 0.25 mm², YE	1.0	m	W1, W2, W3, W4, W5
+Id	Description	Qty	Unit	Designators
+1	Connector, Molex KK 254, female, 4 pins	6		X1, X2, X3, X4, X5, X6
+2	Wire, 0.25 mm², PK	1.0	m	W1, W2, W3, W4, W5
+3	Wire, 0.25 mm², TQ	1.0	m	W1, W2, W3, W4, W5
+4	Wire, 0.25 mm², VT	1.0	m	W1, W2, W3, W4, W5
+5	Wire, 0.25 mm², YE	1.0	m	W1, W2, W3, W4, W5
diff --git a/examples/ex06.gv b/examples/ex06.gv
index b258d32a..3f9d11a0 100644
--- a/examples/ex06.gv
+++ b/examples/ex06.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -39,7 +39,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -75,7 +75,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X3 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -111,7 +111,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X4 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -147,7 +147,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X5 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -183,7 +183,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X6 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -219,7 +219,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ff66cc:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -250,9 +250,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>PK</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     PK
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -264,9 +266,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>TQ</td>
-    <td>X2:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     TQ
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -278,9 +282,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>YE</td>
-    <td>X2:3</td>
+    <td>X1:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X2:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -292,9 +298,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:4</td>
-    <td>VT</td>
-    <td>X2:4</td>
+    <td>X1:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X2:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -309,7 +317,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#ff66cc:#000000"]
 	X3:p1r:e -- W2:w1:w
 	W2:w1:e -- X2:p1l:w
@@ -340,9 +348,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X3:1</td>
-    <td>PK</td>
-    <td>X2:1</td>
+    <td>X3:1:GND</td>
+    <td>
+     PK
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -354,9 +364,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X3:2</td>
-    <td>TQ</td>
-    <td>X2:2</td>
+    <td>X3:2:VCC</td>
+    <td>
+     TQ
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -368,9 +380,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X3:3</td>
-    <td>YE</td>
-    <td>X2:3</td>
+    <td>X3:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X2:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -382,9 +396,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X3:4</td>
-    <td>VT</td>
-    <td>X2:4</td>
+    <td>X3:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X2:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -399,7 +415,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#ff66cc:#000000"]
 	X3:p1r:e -- W3:w1:w
 	W3:w1:e -- X4:p1l:w
@@ -430,9 +446,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X3:1</td>
-    <td>PK</td>
-    <td>X4:1</td>
+    <td>X3:1:GND</td>
+    <td>
+     PK
+    </td>
+    <td>X4:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -444,9 +462,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X3:2</td>
-    <td>TQ</td>
-    <td>X4:2</td>
+    <td>X3:2:VCC</td>
+    <td>
+     TQ
+    </td>
+    <td>X4:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -458,9 +478,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X3:3</td>
-    <td>YE</td>
-    <td>X4:3</td>
+    <td>X3:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X4:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -472,9 +494,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X3:4</td>
-    <td>VT</td>
-    <td>X4:4</td>
+    <td>X3:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X4:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -489,7 +513,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#ff66cc:#000000"]
 	X5:p1r:e -- W4:w1:w
 	W4:w1:e -- X4:p1l:w
@@ -520,9 +544,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X5:1</td>
-    <td>PK</td>
-    <td>X4:1</td>
+    <td>X5:1:GND</td>
+    <td>
+     PK
+    </td>
+    <td>X4:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -534,9 +560,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X5:2</td>
-    <td>TQ</td>
-    <td>X4:2</td>
+    <td>X5:2:VCC</td>
+    <td>
+     TQ
+    </td>
+    <td>X4:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -548,9 +576,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X5:3</td>
-    <td>YE</td>
-    <td>X4:3</td>
+    <td>X5:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X4:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -562,9 +592,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X5:4</td>
-    <td>VT</td>
-    <td>X4:4</td>
+    <td>X5:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X4:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -579,7 +611,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#ff66cc:#000000"]
 	X5:p1r:e -- W5:w1:w
 	W5:w1:e -- X6:p1l:w
@@ -610,9 +642,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X5:1</td>
-    <td>PK</td>
-    <td>X6:1</td>
+    <td>X5:1:GND</td>
+    <td>
+     PK
+    </td>
+    <td>X6:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -624,9 +658,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X5:2</td>
-    <td>TQ</td>
-    <td>X6:2</td>
+    <td>X5:2:VCC</td>
+    <td>
+     TQ
+    </td>
+    <td>X6:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -638,9 +674,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X5:3</td>
-    <td>YE</td>
-    <td>X6:3</td>
+    <td>X5:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X6:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -652,9 +690,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X5:4</td>
-    <td>VT</td>
-    <td>X6:4</td>
+    <td>X5:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X6:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -669,5 +709,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 }
diff --git a/examples/ex06.html b/examples/ex06.html
index 6bb99f00..6c167454 100644
--- a/examples/ex06.html
+++ b/examples/ex06.html
@@ -1,666 +1,713 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
- <title>WireViz Diagram and BOM</title>
-</head><body style="font-family:Arial">
-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>ex06</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>ex06</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
  -->
 <!-- Pages: 1 -->
-<svg width="793pt" height="1024pt"
- viewBox="0.00 0.00 793.00 1024.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<svg width="865pt" height="1024pt"
+ viewBox="0.00 0.00 865.00 1024.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
 <g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 1020)">
-<polygon fill="white" stroke="transparent" points="-4,4 -4,-1020 789,-1020 789,4 -4,4"/>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-1020 861,-1020 861,4 -4,4"/>
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 <g id="node1" class="node">
 <title>X1</title>
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+<text text-anchor="start" x="401.5" y="-80.8" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;TQ &#160;&#160;&#160;</text>
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 <!-- X5&#45;&#45;W5 -->
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 <title>X5:e&#45;&#45;W5:w</title>
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+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1.0</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
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+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1.0</td>
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+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1.0</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1, W2, W3, W4, W5</td>
+ </tr>
+</table>
+</body></html>
diff --git a/examples/ex06.png b/examples/ex06.png
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diff --git a/examples/ex07.bom.tsv b/examples/ex07.bom.tsv
index ff4b2d70..cacb779f 100644
--- a/examples/ex07.bom.tsv
+++ b/examples/ex07.bom.tsv
@@ -1,4 +1,4 @@
-Item	Qty	Unit	Designators
-Connector, D-Sub, female, 9 pins	1		X2
-Connector, TE 776164-1, female, 35 pins	1		X1
-Cable, 2 x 20 AWG	1	m	C1
+Id	Description	Qty	Unit	Designators
+1	Cable, 2 x 20 AWG	1	m	C1
+2	Connector, D-Sub, female, 9 pins	1		X2
+3	Connector, TE 776164-1, female, 35 pins	1		X1
diff --git a/examples/ex07.gv b/examples/ex07.gv
index e93d2b26..4d6c72ba 100644
--- a/examples/ex07.gv
+++ b/examples/ex07.gv
@@ -1,8 +1,8 @@
 graph {
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+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -34,7 +34,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -65,7 +65,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ffff00:#000000"]
 	X1:p5r:e -- C1:w1:w
 	C1:w1:e -- X2:p7l:w
@@ -91,7 +91,9 @@ graph {
    <tr><td>&nbsp;</td></tr>
    <tr>
     <td>X1:5</td>
-    <td>YE</td>
+    <td>
+     1:YE
+    </td>
     <td>X2:7</td>
    </tr>
    <tr>
@@ -105,7 +107,9 @@ graph {
    </tr>
    <tr>
     <td>X1:6</td>
-    <td>GN</td>
+    <td>
+     2:GN
+    </td>
     <td>X2:2</td>
    </tr>
    <tr>
@@ -121,5 +125,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 }
diff --git a/examples/ex07.html b/examples/ex07.html
index 8d785003..4880e676 100644
--- a/examples/ex07.html
+++ b/examples/ex07.html
@@ -1,110 +1,143 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
- <title>WireViz Diagram and BOM</title>
-</head><body style="font-family:Arial">
-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>ex07</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>ex07</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
  -->
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- viewBox="0.00 0.00 821.00 152.50" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<svg width="858pt" height="153pt"
+ viewBox="0.00 0.00 858.00 152.50" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-148.5 854,-148.5 854,4 -4,4"/>
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 <g id="node1" class="node">
 <title>X1</title>
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-<polygon fill="none" stroke="black" points="0.5,-68.5 0.5,-91.5 95.5,-91.5 95.5,-68.5 0.5,-68.5"/>
+<polygon fill="#ffffff" stroke="black" points="212,-115 0,-115 0,0 212,0 212,-115"/>
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+<text text-anchor="start" x="97" y="-99.3" font-family="arial" font-size="14.00">X1</text>
+<polygon fill="none" stroke="black" points="0,-68.5 0,-91.5 98,-91.5 98,-68.5 0,-68.5"/>
 <text text-anchor="start" x="8.5" y="-76.3" font-family="arial" font-size="14.00">TE 776164&#45;1</text>
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-<polygon fill="none" stroke="black" points="152.5,-68.5 152.5,-91.5 205.5,-91.5 205.5,-68.5 152.5,-68.5"/>
-<text text-anchor="start" x="160" y="-76.3" font-family="arial" font-size="14.00">35&#45;pin</text>
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-<text text-anchor="start" x="4.5" y="-7.3" font-family="arial" font-size="14.00">Unconnected pins are not shown</text>
+<polygon fill="none" stroke="black" points="98,-68.5 98,-91.5 157,-91.5 157,-68.5 98,-68.5"/>
+<text text-anchor="start" x="106" y="-76.3" font-family="arial" font-size="14.00">female</text>
+<polygon fill="none" stroke="black" points="157,-68.5 157,-91.5 212,-91.5 212,-68.5 157,-68.5"/>
+<text text-anchor="start" x="165" y="-76.3" font-family="arial" font-size="14.00">35&#45;pin</text>
+<polygon fill="none" stroke="black" points="0,-45.5 0,-68.5 212,-68.5 212,-45.5 0,-45.5"/>
+<text text-anchor="start" x="102" y="-53.3" font-family="arial" font-size="14.00">5</text>
+<polygon fill="none" stroke="black" points="0,-22.5 0,-45.5 212,-45.5 212,-22.5 0,-22.5"/>
+<text text-anchor="start" x="102" y="-30.3" font-family="arial" font-size="14.00">6</text>
+<polygon fill="none" stroke="black" points="0,0.5 0,-22.5 212,-22.5 212,0.5 0,0.5"/>
+<text text-anchor="start" x="4" y="-7.3" font-family="arial" font-size="14.00">Unconnected pins are not shown</text>
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 <g id="node3" class="node">
 <title>C1</title>
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-<text text-anchor="start" x="398" y="-66.3" font-family="arial" font-size="14.00">YE</text>
-<text text-anchor="start" x="430.5" y="-66.3" font-family="arial" font-size="14.00">X2:7</text>
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-<text text-anchor="start" x="396.5" y="-41.3" font-family="arial" font-size="14.00">GN</text>
-<text text-anchor="start" x="430.5" y="-41.3" font-family="arial" font-size="14.00">X2:2</text>
-<polygon fill="#000000" stroke="transparent" points="349.5,-33.5 349.5,-35.5 464.5,-35.5 464.5,-33.5 349.5,-33.5"/>
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-<text text-anchor="start" x="368" y="-16.3" font-family="arial" font-size="14.00"> </text>
+<polygon fill="#ffffff" stroke="black" points="494,-144.5 356,-144.5 356,-10.5 494,-10.5 494,-144.5"/>
+<polygon fill="none" stroke="black" points="356,-121.5 356,-144.5 494,-144.5 494,-121.5 356,-121.5"/>
+<text text-anchor="start" x="416" y="-129.3" font-family="arial" font-size="14.00">C1</text>
+<polygon fill="none" stroke="black" points="356,-98.5 356,-121.5 387,-121.5 387,-98.5 356,-98.5"/>
+<text text-anchor="start" x="364" y="-106.3" font-family="arial" font-size="14.00">2x</text>
+<polygon fill="none" stroke="black" points="387,-98.5 387,-121.5 455,-121.5 455,-98.5 387,-98.5"/>
+<text text-anchor="start" x="395" y="-106.3" font-family="arial" font-size="14.00">20 AWG</text>
+<polygon fill="none" stroke="black" points="455,-98.5 455,-121.5 494,-121.5 494,-98.5 455,-98.5"/>
+<text text-anchor="start" x="462.5" y="-106.3" font-family="arial" font-size="14.00">1 m</text>
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+<polygon fill="#000000" stroke="transparent" points="356,-58.5 356,-60.5 494,-60.5 494,-58.5 356,-58.5"/>
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+<polygon fill="#000000" stroke="transparent" points="356,-33.5 356,-35.5 494,-35.5 494,-33.5 356,-33.5"/>
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+<text text-anchor="start" x="370.5" y="-16.3" font-family="arial" font-size="14.00"> </text>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M212,-54.5C276.13,-54.5 292.12,-55.5 356,-55.5"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M212,-58.5C275.88,-58.5 291.87,-59.5 356,-59.5"/>
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+<path fill="none" stroke="#00ff00" stroke-width="2" d="M212,-33.5C276,-33.5 292,-32.5 356,-32.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M212,-35.5C276.13,-35.5 292.12,-34.5 356,-34.5"/>
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 <g id="node2" class="node">
 <title>X2</title>
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 </svg>
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\ No newline at end of file
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+ <tr>
+  <th style="text-align:left; border:1px solid #000000; padding: 8px">Id</th>
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+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">1</td>
+  <td style="border:1px solid #000000; padding: 4px">Cable, 2 x 20 AWG</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">C1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">2</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, D-Sub, female, 9 pins</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X2</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">3</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, TE 776164-1, female, 35 pins</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X1</td>
+ </tr>
+</table>
+</body></html>
diff --git a/examples/ex07.png b/examples/ex07.png
index 65be34bb..29e5d09e 100644
Binary files a/examples/ex07.png and b/examples/ex07.png differ
diff --git a/examples/ex07.svg b/examples/ex07.svg
index e96072d8..02d8378f 100644
--- a/examples/ex07.svg
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-<text text-anchor="start" x="368" y="-16.3" font-family="arial" font-size="14.00"> </text>
+<polygon fill="#ffffff" stroke="black" points="494,-144.5 356,-144.5 356,-10.5 494,-10.5 494,-144.5"/>
+<polygon fill="none" stroke="black" points="356,-121.5 356,-144.5 494,-144.5 494,-121.5 356,-121.5"/>
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+<polygon fill="none" stroke="black" points="356,-98.5 356,-121.5 387,-121.5 387,-98.5 356,-98.5"/>
+<text text-anchor="start" x="364" y="-106.3" font-family="arial" font-size="14.00">2x</text>
+<polygon fill="none" stroke="black" points="387,-98.5 387,-121.5 455,-121.5 455,-98.5 387,-98.5"/>
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+<text text-anchor="start" x="370.5" y="-85.3" font-family="arial" font-size="14.00"> </text>
+<text text-anchor="start" x="358" y="-66.3" font-family="arial" font-size="14.00">X1:5</text>
+<text text-anchor="start" x="392" y="-66.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;1:YE &#160;&#160;&#160;</text>
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+<text text-anchor="start" x="391" y="-41.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;2:GN &#160;&#160;&#160;</text>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M205,-58.5C268.88,-58.5 284.87,-59.5 349,-59.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M212,-54.5C276.13,-54.5 292.12,-55.5 356,-55.5"/>
+<path fill="none" stroke="#ffff00" stroke-width="2" d="M212,-56.5C276,-56.5 292,-57.5 356,-57.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M212,-58.5C275.88,-58.5 291.87,-59.5 356,-59.5"/>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M212,-35.5C276.13,-35.5 292.12,-34.5 356,-34.5"/>
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diff --git a/examples/ex08.bom.tsv b/examples/ex08.bom.tsv
index 3457bbb3..c0aec092 100644
--- a/examples/ex08.bom.tsv
+++ b/examples/ex08.bom.tsv
@@ -1,3 +1,3 @@
-Item	Qty	Unit	Designators
-Connector, Phone Connector, male 3.5, 3 pins	1		Key
-Cable, 3 x 24 AWG shielded	0.2	m	W1
+Id	Description	Qty	Unit	Designators
+1	Cable, 3 x 24 AWG shielded, BK	0.2	m	W1
+2	Connector, Phone Connector, male 3.5	1		Key
diff --git a/examples/ex08.gv b/examples/ex08.gv
index f7ad1568..55125c73 100644
--- a/examples/ex08.gv
+++ b/examples/ex08.gv
@@ -1,8 +1,8 @@
 graph {
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+// Graph generated by WireViz 0.4-dev
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-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
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 <table border="0" cellspacing="0" cellpadding="0">
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    <tr>
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+    <td port="p1r">T</td>
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    <tr>
     <td>Dash</td>
-    <td port="pRr">R</td>
+    <td port="p2r">R</td>
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-    <td port="pSr">S</td>
+    <td port="p3r">S</td>
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@@ -44,15 +44,15 @@ graph {
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+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ffffff:#000000"]
-	Key:pSr:e -- W1:w1:w
+	Key:p3r:e -- W1:w1:w
 	edge [color="#000000:#895956:#000000"]
-	Key:pRr:e -- W1:w2:w
+	Key:p2r:e -- W1:w2:w
 	edge [color="#000000:#00ff00:#000000"]
-	Key:pTr:e -- W1:w3:w
+	Key:p1r:e -- W1:w3:w
 	edge [color="#000000:#aaaaaa:#000000"]
-	Key:pSr:e -- W1:ws:w
+	Key:p3r:e -- W1:ws:w
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    <tr><td>&nbsp;</td></tr>
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-    <td>Key:S</td>
-    <td>WH</td>
+    <td>Key:S:Ground</td>
+    <td>
+     1:WH
+    </td>
     <td><!-- 1_out --></td>
    </tr>
    <tr>
@@ -88,8 +90,10 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>Key:R</td>
-    <td>BN</td>
+    <td>Key:R:Dash</td>
+    <td>
+     2:BN
+    </td>
     <td><!-- 2_out --></td>
    </tr>
    <tr>
@@ -102,8 +106,10 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>Key:T</td>
-    <td>GN</td>
+    <td>Key:T:Dot</td>
+    <td>
+     3:GN
+    </td>
     <td><!-- 3_out --></td>
    </tr>
    <tr>
@@ -117,7 +123,7 @@ graph {
    </tr>
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>Key:S</td>
+    <td>Key:S:Ground</td>
     <td>Shield</td>
     <td><!-- s_out --></td>
    </tr>
@@ -140,5 +146,5 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 }
diff --git a/examples/ex08.html b/examples/ex08.html
index 99944627..b23a1a95 100644
--- a/examples/ex08.html
+++ b/examples/ex08.html
@@ -1,118 +1,144 @@
 <!DOCTYPE html>
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-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>ex08</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>ex08</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
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+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">1</td>
+  <td style="border:1px solid #000000; padding: 4px">Cable, 3 x 24 AWG shielded, BK</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">2</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, Phone Connector, male 3.5</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">Key</td>
+ </tr>
+</table>
+</body></html>
diff --git a/examples/ex08.png b/examples/ex08.png
index a4969d38..73bec815 100644
Binary files a/examples/ex08.png and b/examples/ex08.png differ
diff --git a/examples/ex08.svg b/examples/ex08.svg
index 26a5acda..3355f082 100644
--- a/examples/ex08.svg
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-<image xlink:href="resources/cable-WH+BN+GN+shield.png" width="66px" height="66px" preserveAspectRatio="xMinYMin meet" x="382" y="-95"/>
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+<polygon fill="none" stroke="black" points="323,-281 323,-304 515,-304 515,-281 323,-281"/>
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+<text text-anchor="start" x="328.5" y="-225.8" font-family="arial" font-size="14.00">Key:S:Ground</text>
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diff --git a/examples/ex09.bom.tsv b/examples/ex09.bom.tsv
index b07a1548..26362d3a 100644
--- a/examples/ex09.bom.tsv
+++ b/examples/ex09.bom.tsv
@@ -1,4 +1,4 @@
-Item	Qty	Unit	Designators
-Connector, D-Sub, male, 25 pins	1		X1
-Connector, F48, female, 48 pins	1		X2
-Cable, 12 x 0.25 mm² shielded	0.2	m	W1
+Id	Description	Qty	Unit	Designators
+1	Cable, 12 x 0.25 mm² shielded	0.2	m	W1
+2	Connector, D-Sub, male, 25 pins	1		X1
+3	Connector, F48, female, 48 pins	1		X2
diff --git a/examples/ex09.gv b/examples/ex09.gv
index b965d277..88171436 100644
--- a/examples/ex09.gv
+++ b/examples/ex09.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
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 <table border="0" cellspacing="0" cellpadding="0">
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    </tr>
    <tr>
     <td>SENSE_N_1</td>
-    <td port="p14r">14</td>
+    <td port="p2r">14</td>
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    <tr>
     <td>SENSE_P_2</td>
@@ -34,7 +34,7 @@ graph {
    </tr>
    <tr>
     <td>SENSE_N_2</td>
-    <td port="p16r">16</td>
+    <td port="p4r">16</td>
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    <tr>
     <td>SENSE_P_3</td>
@@ -42,7 +42,7 @@ graph {
    </tr>
    <tr>
     <td>SENSE_N_3</td>
-    <td port="p18r">18</td>
+    <td port="p6r">18</td>
    </tr>
    <tr>
     <td>SENSE_P_4</td>
@@ -50,7 +50,7 @@ graph {
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    <tr>
     <td>SENSE_N_4</td>
-    <td port="p20r">20</td>
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    <tr>
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@@ -58,7 +58,7 @@ graph {
    </tr>
    <tr>
     <td>SENSE_N_5</td>
-    <td port="p22r">22</td>
+    <td port="p10r">22</td>
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    <tr>
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@@ -66,7 +66,7 @@ graph {
    </tr>
    <tr>
     <td>SENSE_N_6</td>
-    <td port="p24r">24</td>
+    <td port="p12r">24</td>
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    <tr>
     <td>GND</td>
@@ -75,7 +75,7 @@ graph {
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  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
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@@ -93,189 +93,189 @@ graph {
  <tr><td>
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    <tr>
-    <td port="pz2l">z2</td>
+    <td port="p1l">z2</td>
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    <tr>
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+    <td port="p2l">b2</td>
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    <tr>
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    <tr>
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    <tr>
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+    <td port="p7l">z6</td>
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    <tr>
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    <tr>
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-    <td port="pz8l">z8</td>
+    <td port="p10l">z8</td>
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    <tr>
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+    <td port="p12l">d8</td>
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    <tr>
-    <td port="pb10l">b10</td>
+    <td port="p14l">b10</td>
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    <tr>
-    <td port="pd10l">d10</td>
+    <td port="p15l">d10</td>
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+    <td port="p16l">z12</td>
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-    <td port="pd12l">d12</td>
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-    <td port="pz14l">z14</td>
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-    <td port="pb14l">b14</td>
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    <tr>
-    <td port="pd14l">d14</td>
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-    <td port="pz16l">z16</td>
+    <td port="p22l">z16</td>
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    <tr>
-    <td port="pb16l">b16</td>
+    <td port="p23l">b16</td>
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    <tr>
-    <td port="pd16l">d16</td>
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+    <td port="p25l">z18</td>
    </tr>
    <tr>
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+    <td port="p26l">b18</td>
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    <tr>
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    <tr>
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    <tr>
-    <td port="pd32l">d32</td>
+    <td port="p48l">d32</td>
    </tr>
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  </td></tr>
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-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#895956:#895956:#895956:#000000"]
 	X1:p1r:e -- W1:w2:w
-	W1:w2:e -- X2:pd4l:w
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-	W1:w1:e -- X2:pz2l:w
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@@ -297,8 +297,10 @@ graph {
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    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:14</td>
-    <td>WH</td>
+    <td>X1:14:SENSE_N_1</td>
+    <td>
+     1:WH
+    </td>
     <td>X2:z2</td>
    </tr>
    <tr>
@@ -313,8 +315,10 @@ graph {
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    </tr>
    <tr>
-    <td>X1:1</td>
-    <td>BN</td>
+    <td>X1:1:SENSE_P_1</td>
+    <td>
+     2:BN
+    </td>
     <td>X2:d4</td>
    </tr>
    <tr>
@@ -329,8 +333,10 @@ graph {
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    </tr>
    <tr>
-    <td>X1:16</td>
-    <td>GN</td>
+    <td>X1:16:SENSE_N_2</td>
+    <td>
+     3:GN
+    </td>
     <td>X2:z8</td>
    </tr>
    <tr>
@@ -345,8 +351,10 @@ graph {
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    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>YE</td>
+    <td>X1:3:SENSE_P_2</td>
+    <td>
+     4:YE
+    </td>
     <td>X2:d10</td>
    </tr>
    <tr>
@@ -361,8 +369,10 @@ graph {
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    </tr>
    <tr>
-    <td>X1:18</td>
-    <td>GY</td>
+    <td>X1:18:SENSE_N_3</td>
+    <td>
+     5:GY
+    </td>
     <td>X2:z14</td>
    </tr>
    <tr>
@@ -377,8 +387,10 @@ graph {
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    </tr>
    <tr>
-    <td>X1:5</td>
-    <td>PK</td>
+    <td>X1:5:SENSE_P_3</td>
+    <td>
+     6:PK
+    </td>
     <td>X2:d16</td>
    </tr>
    <tr>
@@ -393,8 +405,10 @@ graph {
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    </tr>
    <tr>
-    <td>X1:20</td>
-    <td>BU</td>
+    <td>X1:20:SENSE_N_4</td>
+    <td>
+     7:BU
+    </td>
     <td>X2:z18</td>
    </tr>
    <tr>
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    </tr>
    <tr>
-    <td>X1:7</td>
-    <td>RD</td>
+    <td>X1:7:SENSE_P_4</td>
+    <td>
+     8:RD
+    </td>
     <td>X2:d20</td>
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    <tr>
@@ -425,8 +441,10 @@ graph {
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    </tr>
    <tr>
-    <td>X1:22</td>
-    <td>BK</td>
+    <td>X1:22:SENSE_N_5</td>
+    <td>
+     9:BK
+    </td>
     <td>X2:z24</td>
    </tr>
    <tr>
@@ -441,8 +459,10 @@ graph {
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    </tr>
    <tr>
-    <td>X1:9</td>
-    <td>VT</td>
+    <td>X1:9:SENSE_P_5</td>
+    <td>
+     10:VT
+    </td>
     <td>X2:d26</td>
    </tr>
    <tr>
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    </tr>
    <tr>
-    <td>X1:24</td>
-    <td>GYPK</td>
+    <td>X1:24:SENSE_N_6</td>
+    <td>
+     11:GYPK
+    </td>
     <td>X2:z30</td>
    </tr>
    <tr>
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    </tr>
    <tr>
-    <td>X1:11</td>
-    <td>RDBU</td>
+    <td>X1:11:SENSE_P_6</td>
+    <td>
+     12:RDBU
+    </td>
     <td>X2:d32</td>
    </tr>
    <tr>
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    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:13</td>
+    <td>X1:13:GND</td>
     <td>Shield</td>
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  </td></tr>
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diff --git a/examples/ex09.html b/examples/ex09.html
index de91d70d..e0fe77b5 100644
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+  <td style="border:1px solid #000000; padding: 4px">Cable, 12 x 0.25 mm&sup2; shielded</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">0.2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W1</td>
+ </tr>
+ <tr>
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+  <td style="border:1px solid #000000; padding: 4px">Connector, D-Sub, male, 25 pins</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X1</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">3</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, F48, female, 48 pins</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X2</td>
+ </tr>
+</table>
+</body></html>
diff --git a/examples/ex09.png b/examples/ex09.png
index 57ccebbc..210a8e2a 100644
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diff --git a/examples/ex10.bom.tsv b/examples/ex10.bom.tsv
index 259d52a8..bdb68a6a 100644
--- a/examples/ex10.bom.tsv
+++ b/examples/ex10.bom.tsv
@@ -1,3 +1,3 @@
-Item	Qty	Unit	Designators
-Connector, Stewart Connector SS-37000-002, male, 8 pins	2		X1, X2
-Cable, CAT5e, 8 x 24 AWG	1	m	W1
+Id	Description	Qty	Unit	Designators
+1	Cable, CAT5e, 8 x 24 AWG	1	m	W1
+2	Connector, Stewart Connector SS-37000-002, male, 8 pins	2		X1, X2
diff --git a/examples/ex10.gv b/examples/ex10.gv
index 05b20db3..6b2d92d7 100644
--- a/examples/ex10.gv
+++ b/examples/ex10.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -55,7 +55,7 @@ graph {
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  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
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 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -107,7 +107,7 @@ graph {
   </table>
  </td></tr>
 </table>
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+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ffffff:#00ff00:#ffffff:#000000"]
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 	W1:w1:e -- X2:p3l:w
@@ -151,9 +151,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>WHGN</td>
-    <td>X2:3</td>
+    <td>X1:1:DA+</td>
+    <td>
+     1:WHGN
+    </td>
+    <td>X2:3:DA+</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="10">
@@ -167,9 +169,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>GN</td>
-    <td>X2:6</td>
+    <td>X1:2:DA-</td>
+    <td>
+     2:GN
+    </td>
+    <td>X2:6:DA-</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="10">
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     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>WHOG</td>
-    <td>X2:1</td>
+    <td>X1:3:DB+</td>
+    <td>
+     3:WHOG
+    </td>
+    <td>X2:1:DB+</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="10">
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    </tr>
    <tr>
-    <td>X1:4</td>
-    <td>BU</td>
-    <td>X2:7</td>
+    <td>X1:4:DC+</td>
+    <td>
+     4:BU
+    </td>
+    <td>X2:7:DC+</td>
    </tr>
    <tr>
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    </tr>
    <tr>
-    <td>X1:5</td>
-    <td>WHBU</td>
-    <td>X2:8</td>
+    <td>X1:5:DC-</td>
+    <td>
+     5:WHBU
+    </td>
+    <td>X2:8:DC-</td>
    </tr>
    <tr>
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    </tr>
    <tr>
-    <td>X1:6</td>
-    <td>OG</td>
-    <td>X2:2</td>
+    <td>X1:6:DB-</td>
+    <td>
+     6:OG
+    </td>
+    <td>X2:2:DB-</td>
    </tr>
    <tr>
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    </tr>
    <tr>
-    <td>X1:7</td>
-    <td>WHBN</td>
-    <td>X2:4</td>
+    <td>X1:7:DD+</td>
+    <td>
+     7:WHBN
+    </td>
+    <td>X2:4:DD+</td>
    </tr>
    <tr>
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    </tr>
    <tr>
-    <td>X1:8</td>
-    <td>BN</td>
-    <td>X2:5</td>
+    <td>X1:8:DD-</td>
+    <td>
+     8:BN
+    </td>
+    <td>X2:5:DD-</td>
    </tr>
    <tr>
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diff --git a/examples/ex10.html b/examples/ex10.html
index 2ea09f17..df171132 100644
--- a/examples/ex10.html
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+ <title>ex10</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>ex10</h1>
+<h2>Diagram</h2>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M598,-28C672.98,-23.47 659.09,-127.47 742,-132"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M670,-20C752.91,-24.53 739.02,-128.53 814,-124"/>
+<path fill="none" stroke="#895956" stroke-width="2" d="M670,-22C750.93,-24.26 737.04,-128.26 814,-126"/>
+<path fill="none" stroke="#895956" stroke-width="2" d="M670,-24C748.95,-24 735.05,-128 814,-128"/>
+<path fill="none" stroke="#895956" stroke-width="2" d="M670,-26C746.96,-23.74 733.07,-127.74 814,-130"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M670,-28C744.98,-23.47 731.09,-127.47 814,-132"/>
 </g>
 </g>
 </svg>
diff --git a/setup.py b/setup.py
index ac4d19f7..4992bc56 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 import os
diff --git a/src/wireviz/DataClasses.py b/src/wireviz/DataClasses.py
index e80437b2..6b7462ab 100644
--- a/src/wireviz/DataClasses.py
+++ b/src/wireviz/DataClasses.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 from typing import Dict, List, Optional, Tuple, Union
@@ -6,7 +5,7 @@
 from pathlib import Path
 
 from wireviz.wv_helper import int2tuple, aspect_ratio
-from wireviz import wv_colors
+from wireviz.wv_colors import Color, Colors, ColorMode, ColorScheme, COLOR_CODES
 
 
 # Each type alias have their legal values described in comments - validation might be implemented in the future
@@ -19,12 +18,8 @@
 ConnectorMultiplier = PlainText # = Literal['pincount', 'populated']
 CableMultiplier = PlainText # = Literal['wirecount', 'terminations', 'length', 'total_length']
 ImageScale = PlainText # = Literal['false', 'true', 'width', 'height', 'both']
-Color = PlainText # Two-letter color name = Literal[wv_colors._color_hex.keys()]
-ColorMode = PlainText # = Literal['full', 'FULL', 'hex', 'HEX', 'short', 'SHORT', 'ger', 'GER']
-ColorScheme = PlainText # Color scheme name = Literal[wv_colors.COLOR_CODES.keys()]
 
 # Type combinations
-Colors = PlainText # One or more two-letter color names (Color) concatenated into one string
 Pin = Union[int, PlainText] # Pin identifier
 PinIndex = int # Zero-based pin index
 Wire = Union[int, PlainText] # Wire number or Literal['s'] for shield
@@ -59,6 +54,12 @@ def __post_init__(self):
             self.bgcolor_bundle = self.bgcolor_cable
 
 
+@dataclass
+class Tweak:
+    override: Optional[Dict[Designator, Dict[str, Optional[str]]]] = None
+    append: Union[str, List[str], None] = None
+
+
 @dataclass
 class Image:
     gv_dir: InitVar[Path] # Directory of .gv file injected as context during parsing
@@ -69,6 +70,7 @@ class Image:
     width: Optional[int] = None
     height: Optional[int] = None
     fixedsize: Optional[bool] = None
+    bgcolor: Optional[Color] = None
     # Contents of the text cell <td> just below the image cell:
     caption: Optional[MultilineHypertext] = None
     # See also HTML doc at https://graphviz.org/doc/info/shapes.html#html
@@ -101,10 +103,13 @@ class AdditionalComponent:
     subtype: Optional[MultilineHypertext] = None
     manufacturer: Optional[MultilineHypertext] = None
     mpn: Optional[MultilineHypertext] = None
+    supplier: Optional[MultilineHypertext] = None
+    spn: Optional[MultilineHypertext] = None
     pn: Optional[Hypertext] = None
     qty: float = 1
     unit: Optional[str] = None
     qty_multiplier: Union[ConnectorMultiplier, CableMultiplier, None] = None
+    bgcolor: Optional[Color] = None
 
     @property
     def description(self) -> str:
@@ -114,8 +119,12 @@ def description(self) -> str:
 @dataclass
 class Connector:
     name: Designator
+    bgcolor: Optional[Color] = None
+    bgcolor_title: Optional[Color] = None
     manufacturer: Optional[MultilineHypertext] = None
     mpn: Optional[MultilineHypertext] = None
+    supplier: Optional[MultilineHypertext] = None
+    spn: Optional[MultilineHypertext] = None
     pn: Optional[Hypertext] = None
     style: Optional[str] = None
     category: Optional[str] = None
@@ -196,8 +205,12 @@ def get_qty_multiplier(self, qty_multiplier: Optional[ConnectorMultiplier]) -> i
 @dataclass
 class Cable:
     name: Designator
+    bgcolor: Optional[Color] = None
+    bgcolor_title: Optional[Color] = None
     manufacturer: Union[MultilineHypertext, List[MultilineHypertext], None] = None
     mpn: Union[MultilineHypertext, List[MultilineHypertext], None] = None
+    supplier: Union[MultilineHypertext, List[MultilineHypertext], None] = None
+    spn: Union[MultilineHypertext, List[MultilineHypertext], None] = None
     pn: Union[Hypertext, List[Hypertext], None] = None
     category: Optional[str] = None
     type: Optional[MultilineHypertext] = None
@@ -266,9 +279,9 @@ def __post_init__(self) -> None:
             if self.colors:  # use custom color palette (partly or looped if needed)
                 pass
             elif self.color_code:  # use standard color palette (partly or looped if needed)
-                if self.color_code not in wv_colors.COLOR_CODES:
+                if self.color_code not in COLOR_CODES:
                     raise Exception('Unknown color code')
-                self.colors = wv_colors.COLOR_CODES[self.color_code]
+                self.colors = COLOR_CODES[self.color_code]
             else:  # no colors defined, add dummy colors
                 self.colors = [''] * self.wirecount
 
@@ -288,7 +301,7 @@ def __post_init__(self) -> None:
                 raise Exception('"s" may not be used as a wire label for a shielded cable.')
 
         # if lists of part numbers are provided check this is a bundle and that it matches the wirecount.
-        for idfield in [self.manufacturer, self.mpn, self.pn]:
+        for idfield in [self.manufacturer, self.mpn, self.supplier, self.spn, self.pn]:
             if isinstance(idfield, list):
                 if self.category == "bundle":
                     # check the length
diff --git a/src/wireviz/Harness.py b/src/wireviz/Harness.py
index 39180500..2f9eb641 100644
--- a/src/wireviz/Harness.py
+++ b/src/wireviz/Harness.py
@@ -1,21 +1,22 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 from graphviz import Graph
 from collections import Counter
-from typing import List, Union
+from typing import Any, List, Union
 from dataclasses import dataclass
 from pathlib import Path
 from itertools import zip_longest
 import re
 
 from wireviz import wv_colors, __version__, APP_NAME, APP_URL
-from wireviz.DataClasses import Metadata, Options, Connector, Cable
+from wireviz.DataClasses import Metadata, Options, Tweak, Connector, Cable
 from wireviz.wv_colors import get_color_hex, translate_color
-from wireviz.wv_gv_html import nested_html_table, html_colorbar, html_image, \
-    html_caption, remove_links, html_line_breaks
-from wireviz.wv_bom import manufacturer_info_field, component_table_entry, \
-    get_additional_component_table, bom_list, generate_bom
+from wireviz.wv_gv_html import nested_html_table, \
+    html_bgcolor_attr, html_bgcolor, html_colorbar, \
+    html_image, html_caption, remove_links, html_line_breaks
+from wireviz.wv_bom import pn_info_string, component_table_entry, \
+    get_additional_component_table, bom_list, generate_bom, \
+    HEADER_PN, HEADER_MPN, HEADER_SPN
 from wireviz.wv_html import generate_html_output
 from wireviz.wv_helper import awg_equiv, mm2_equiv, tuplelist2tsv, flatten2d, \
     open_file_read, open_file_write
@@ -25,6 +26,7 @@
 class Harness:
     metadata: Metadata
     options: Options
+    tweak: Tweak
 
     def __post_init__(self):
         self.connectors = {}
@@ -123,9 +125,11 @@ def create_graph(self) -> Graph:
 
             html = []
 
-            rows = [[remove_links(connector.name) if connector.show_name else None],
-                    [f'P/N: {remove_links(connector.pn)}' if connector.pn else None,
-                     html_line_breaks(manufacturer_info_field(connector.manufacturer, connector.mpn))],
+            rows = [[f'{html_bgcolor(connector.bgcolor_title)}{remove_links(connector.name)}'
+                        if connector.show_name else None],
+                    [pn_info_string(HEADER_PN, None, remove_links(connector.pn)),
+                     html_line_breaks(pn_info_string(HEADER_MPN, connector.manufacturer, connector.mpn)),
+                     html_line_breaks(pn_info_string(HEADER_SPN, connector.supplier, connector.spn))],
                     [html_line_breaks(connector.type),
                      html_line_breaks(connector.subtype),
                      f'{connector.pincount}-pin' if connector.show_pincount else None,
@@ -136,7 +140,7 @@ def create_graph(self) -> Graph:
                     [html_caption(connector.image)]]
             rows.extend(get_additional_component_table(self, connector))
             rows.append([html_line_breaks(connector.notes)])
-            html.extend(nested_html_table(rows))
+            html.extend(nested_html_table(rows, html_bgcolor_attr(connector.bgcolor)))
 
             if connector.style != 'simple':
                 pinhtml = []
@@ -206,11 +210,16 @@ def create_graph(self) -> Graph:
                 elif cable.gauge_unit.upper() == 'AWG':
                     awg_fmt = f' ({mm2_equiv(cable.gauge)} mm\u00B2)'
 
-            rows = [[remove_links(cable.name) if cable.show_name else None],
-                    [f'P/N: {remove_links(cable.pn)}' if (cable.pn and not isinstance(cable.pn, list)) else None,
-                     html_line_breaks(manufacturer_info_field(
+            rows = [[f'{html_bgcolor(cable.bgcolor_title)}{remove_links(cable.name)}'
+                        if cable.show_name else None],
+                    [pn_info_string(HEADER_PN, None,
+                        remove_links(cable.pn)) if not isinstance(cable.pn, list) else None,
+                     html_line_breaks(pn_info_string(HEADER_MPN,
                         cable.manufacturer if not isinstance(cable.manufacturer, list) else None,
-                        cable.mpn if not isinstance(cable.mpn, list) else None))],
+                        cable.mpn if not isinstance(cable.mpn, list) else None)),
+                     html_line_breaks(pn_info_string(HEADER_SPN,
+                        cable.supplier if not isinstance(cable.supplier, list) else None,
+                        cable.spn if not isinstance(cable.spn, list) else None))],
                     [html_line_breaks(cable.type),
                      f'{cable.wirecount}x' if cable.show_wirecount else None,
                      f'{cable.gauge} {cable.gauge_unit}{awg_fmt}' if cable.gauge else None,
@@ -224,7 +233,7 @@ def create_graph(self) -> Graph:
 
             rows.extend(get_additional_component_table(self, cable))
             rows.append([html_line_breaks(cable.notes)])
-            html.extend(nested_html_table(rows))
+            html.extend(nested_html_table(rows, html_bgcolor_attr(cable.bgcolor)))
 
             wirehtml = []
             wirehtml.append('<table border="0" cellspacing="0" cellborder="0">')  # conductor table
@@ -262,12 +271,17 @@ def create_graph(self) -> Graph:
                     # create a list of wire parameters
                     wireidentification = []
                     if isinstance(cable.pn, list):
-                        wireidentification.append(f'P/N: {remove_links(cable.pn[i - 1])}')
-                    manufacturer_info = manufacturer_info_field(
+                        wireidentification.append(pn_info_string(HEADER_PN, None, remove_links(cable.pn[i - 1])))
+                    manufacturer_info = pn_info_string(HEADER_MPN,
                         cable.manufacturer[i - 1] if isinstance(cable.manufacturer, list) else None,
                         cable.mpn[i - 1] if isinstance(cable.mpn, list) else None)
+                    supplier_info = pn_info_string(HEADER_SPN,
+                        cable.supplier[i - 1] if isinstance(cable.supplier, list) else None,
+                        cable.spn[i - 1] if isinstance(cable.spn, list) else None)
                     if manufacturer_info:
                         wireidentification.append(html_line_breaks(manufacturer_info))
+                    if supplier_info:
+                        wireidentification.append(html_line_breaks(supplier_info))
                     # print parameters into a table row under the wire
                     if len(wireidentification) > 0 :
                         wirehtml.append('   <tr><td colspan="3">')
@@ -344,6 +358,57 @@ def create_graph(self) -> Graph:
             dot.node(cable.name, label=f'<\n{html}\n>', shape='box',
                      style=style, fillcolor=translate_color(bgcolor, "HEX"))
 
+        def typecheck(name: str, value: Any, expect: type) -> None:
+            if not isinstance(value, expect):
+                raise Exception(f'Unexpected value type of {name}: Expected {expect}, got {type(value)}\n{value}')
+
+        # TODO?: Differ between override attributes and HTML?
+        if self.tweak.override is not None:
+            typecheck('tweak.override', self.tweak.override, dict)
+            for k, d in self.tweak.override.items():
+                typecheck(f'tweak.override.{k} key', k, str)
+                typecheck(f'tweak.override.{k} value', d, dict)
+                for a, v in d.items():
+                    typecheck(f'tweak.override.{k}.{a} key', a, str)
+                    typecheck(f'tweak.override.{k}.{a} value', v, (str, type(None)))
+
+            # Override generated attributes of selected entries matching tweak.override.
+            for i, entry in enumerate(dot.body):
+                if isinstance(entry, str):
+                    # Find a possibly quoted keyword after leading TAB(s) and followed by [ ].
+                    match = re.match(r'^\t*(")?((?(1)[^"]|[^ "])+)(?(1)") \[.*\]$', entry, re.S)
+                    keyword = match and match[2]
+                    if keyword in self.tweak.override.keys():
+                        for attr, value in self.tweak.override[keyword].items():
+                            if value is None:
+                                entry, n_subs = re.subn(f'( +)?{attr}=("[^"]*"|[^] ]*)(?(1)| *)', '', entry)
+                                if n_subs < 1:
+                                    print(f'Harness.create_graph() warning: {attr} not found in {keyword}!')
+                                elif n_subs > 1:
+                                    print(f'Harness.create_graph() warning: {attr} removed {n_subs} times in {keyword}!')
+                                continue
+
+                            if len(value) == 0 or ' ' in value:
+                                value = value.replace('"', r'\"')
+                                value = f'"{value}"'
+                            entry, n_subs = re.subn(f'{attr}=("[^"]*"|[^] ]*)', f'{attr}={value}', entry)
+                            if n_subs < 1:
+                                # If attr not found, then append it
+                                entry = re.sub(r'\]$', f' {attr}={value}]', entry)
+                            elif n_subs > 1:
+                                print(f'Harness.create_graph() warning: {attr} overridden {n_subs} times in {keyword}!')
+
+                        dot.body[i] = entry
+
+        if self.tweak.append is not None:
+            if isinstance(self.tweak.append, list):
+                for i, element in enumerate(self.tweak.append, 1):
+                    typecheck(f'tweak.append[{i}]', element, str)
+                dot.body.extend(self.tweak.append)
+            else:
+                typecheck('tweak.append', self.tweak.append, str)
+                dot.body.append(self.tweak.append)
+
         return dot
 
     @property
diff --git a/src/wireviz/__init__.py b/src/wireviz/__init__.py
index 4347851c..178fbf18 100644
--- a/src/wireviz/__init__.py
+++ b/src/wireviz/__init__.py
@@ -1,6 +1,7 @@
+# -*- coding: utf-8 -*-
 # Please don't import anything in this file to avoid issues when it is imported in setup.py
 
-__version__ = '0.3-dev'
+__version__ = '0.4-dev'
 
 CMD_NAME = 'wireviz'  # Lower case command and module name
 APP_NAME = 'WireViz'  # Application name in texts meant to be human readable
diff --git a/src/wireviz/build_examples.py b/src/wireviz/build_examples.py
index 4195b121..65a10f6b 100755
--- a/src/wireviz/build_examples.py
+++ b/src/wireviz/build_examples.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 import argparse
diff --git a/src/wireviz/wireviz.py b/src/wireviz/wireviz.py
index 6ba77eec..95674945 100755
--- a/src/wireviz/wireviz.py
+++ b/src/wireviz/wireviz.py
@@ -13,7 +13,7 @@
     sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
 
 from wireviz import __version__
-from wireviz.DataClasses import Metadata, Options
+from wireviz.DataClasses import Metadata, Options, Tweak
 from wireviz.Harness import Harness
 from wireviz.wv_helper import expand, open_file_read
 
@@ -38,6 +38,7 @@ def parse(yaml_input: str, file_out: (str, Path) = None, return_types: (None, st
     harness = Harness(
         metadata = Metadata(**yaml_data.get('metadata', {})),
         options = Options(**yaml_data.get('options', {})),
+        tweak = Tweak(**yaml_data.get('tweak', {})),
     )
     if 'title' not in harness.metadata:
         harness.metadata['title'] = Path(file_out).stem
diff --git a/src/wireviz/wv_bom.py b/src/wireviz/wv_bom.py
index 76ba4a1d..56df752d 100644
--- a/src/wireviz/wv_bom.py
+++ b/src/wireviz/wv_bom.py
@@ -1,19 +1,22 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 from dataclasses import asdict
 from itertools import groupby
 from typing import Any, Dict, List, Optional, Tuple, Union
 
-from wireviz.DataClasses import AdditionalComponent, Connector, Cable
+from wireviz.DataClasses import AdditionalComponent, Cable, Color, Connector
 from wireviz.wv_colors import translate_color
-from wireviz.wv_gv_html import html_line_breaks
+from wireviz.wv_gv_html import html_bgcolor_attr, html_line_breaks
 from wireviz.wv_helper import clean_whitespace
 
 BOM_COLUMNS_ALWAYS = ('id', 'description', 'qty', 'unit', 'designators')
-BOM_COLUMNS_OPTIONAL = ('pn', 'manufacturer', 'mpn')
+BOM_COLUMNS_OPTIONAL = ('pn', 'manufacturer', 'mpn', 'supplier', 'spn')
 BOM_COLUMNS_IN_KEY = ('description', 'unit') + BOM_COLUMNS_OPTIONAL
 
+HEADER_PN = 'P/N'
+HEADER_MPN = 'MPN'
+HEADER_SPN = 'SPN'
+
 BOMKey = Tuple[str, ...]
 BOMColumn = str  # = Literal[*BOM_COLUMNS_ALWAYS, *BOM_COLUMNS_OPTIONAL]
 BOMEntry = Dict[BOMColumn, Union[str, int, float, List[str], None]]
@@ -32,6 +35,7 @@ def get_additional_component_table(harness: "Harness", component: Union[Connecto
             common_args = {
                 'qty': part.qty * component.get_qty_multiplier(part.qty_multiplier),
                 'unit': part.unit,
+                'bgcolor': part.bgcolor,
             }
             if harness.options.mini_bom_mode:
                 id = get_bom_index(harness.bom(), bom_entry_key({**asdict(part), 'description': part.description}))
@@ -143,8 +147,9 @@ def bom_list(bom: List[BOMEntry]) -> List[List[str]]:
     # Custom mapping from internal name to BOM column headers.
     # Headers not specified here are generated by capitilising the internal name.
     bom_headings = {
-        "pn": "P/N",
-        "mpn": "MPN"
+        'pn': HEADER_PN,
+        'mpn': HEADER_MPN,
+        'spn': HEADER_SPN,
     }
     return ([[bom_headings.get(k, k.capitalize()) for k in keys]] +  # Create header row with key names
             [[make_str(entry.get(k)) for k in keys] for entry in bom])  # Create string list for each entry row
@@ -153,29 +158,35 @@ def component_table_entry(
         type: str,
         qty: Union[int, float],
         unit: Optional[str] = None,
+        bgcolor: Optional[Color] = None,
         pn: Optional[str] = None,
         manufacturer: Optional[str] = None,
         mpn: Optional[str] = None,
+        supplier: Optional[str] = None,
+        spn: Optional[str] = None,
     ) -> str:
     """Return a diagram node table row string with an additional component."""
-    manufacturer_str = manufacturer_info_field(manufacturer, mpn)
+    part_number_list = [
+        pn_info_string(HEADER_PN, None, pn),
+        pn_info_string(HEADER_MPN, manufacturer, mpn),
+        pn_info_string(HEADER_SPN, supplier, spn),
+    ]
     output = (f'{qty}'
               + (f' {unit}' if unit else '')
               + f' x {type}'
-              + ('<br/>' if pn or manufacturer_str else '')
-              + (f'P/N: {pn}' if pn else '')
-              + (', ' if pn and manufacturer_str else '')
-              + (manufacturer_str or ''))
+              + ('<br/>' if any(part_number_list) else '')
+              + (', '.join([pn for pn in part_number_list if pn])))
     # format the above output as left aligned text in a single visible cell
     # indent is set to two to match the indent in the generated html table
-    return f'''<table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+    return f'''<table border="0" cellspacing="0" cellpadding="3" cellborder="1"{html_bgcolor_attr(bgcolor)}><tr>
    <td align="left" balign="left">{html_line_breaks(output)}</td>
   </tr></table>'''
 
-def manufacturer_info_field(manufacturer: Optional[str], mpn: Optional[str]) -> Optional[str]:
-    """Return the manufacturer and/or the mpn in one single string or None otherwise."""
-    if manufacturer or mpn:
-        return f'{manufacturer if manufacturer else "MPN"}{": " + str(mpn) if mpn else ""}'
+def pn_info_string(header: str, name: Optional[str], number: Optional[str]) -> Optional[str]:
+    """Return the company name and/or the part number in one single string or None otherwise."""
+    number = str(number).strip() if number is not None else ''
+    if name or number:
+        return f'{name if name else header}{": " + number if number else ""}'
     else:
         return None
 
diff --git a/src/wireviz/wv_colors.py b/src/wireviz/wv_colors.py
index eb3b106e..e07ed53e 100644
--- a/src/wireviz/wv_colors.py
+++ b/src/wireviz/wv_colors.py
@@ -1,7 +1,6 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-import sys
+from typing import Dict, List
 
 COLOR_CODES = {
     'DIN': ['WH', 'BN', 'GN', 'YE', 'GY', 'PK', 'BU', 'RD', 'BK', 'VT', 'GYPK', 'RDBU', 'WHGN', 'BNGN', 'WHYE', 'YEBN',
@@ -107,27 +106,61 @@
 
 color_default = '#ffffff'
 
+_hex_digits = set('0123456789abcdefABCDEF')
 
-def get_color_hex(input, pad=False):
+
+# Literal type aliases below are commented to avoid requiring python 3.8
+Color = str  # Two-letter color name = Literal[_color_hex.keys()]
+Colors = str  # One or more two-letter color names (Color) concatenated into one string
+ColorMode = str  # = Literal['full', 'FULL', 'hex', 'HEX', 'short', 'SHORT', 'ger', 'GER']
+ColorScheme = str  # Color scheme name = Literal[COLOR_CODES.keys()]
+
+
+def get_color_hex(input: Colors, pad: bool = False) -> List[str]:
+    """Return list of hex colors from either a string of color names or :-separated hex colors."""
     if input is None or input == '':
         return [color_default]
+    elif input[0] == '#':  # Hex color(s)
+        output = input.split(':')
+        for i, c in enumerate(output):
+            if c[0] != '#' or not all(d in _hex_digits for d in c[1:]):
+                if c != input:
+                    c += f' in input: {input}'
+                print(f'Invalid hex color: {c}')
+                output[i] = color_default
+    else:  # Color name(s)
+        def lookup(c: str) -> str:
+            try:
+                return _color_hex[c]
+            except KeyError:
+                if c != input:
+                    c += f' in input: {input}'
+                print(f'Unknown color name: {c}')
+                return color_default
 
-    if len(input) == 4:  # give wires with EXACTLY 2 colors that striped/banded look
-        padded = input + input[:2]
-    elif pad and len(input) == 2: # hacky style fix: give single color wires a triple-up so that wires are the same size
-        padded = input + input + input
-    else:
-        padded = input
+        output = [lookup(input[i:i + 2]) for i in range(0, len(input), 2)]
+
+    if len(output) == 2:  # Give wires with EXACTLY 2 colors that striped look.
+        output += output[:1]
+    elif pad and len(output) == 1:  # Hacky style fix: Give single color wires
+        output *= 3                 # a triple-up so that wires are the same size.
 
-    try:
-        output = [_color_hex[padded[i:i + 2]] for i in range(0, len(padded), 2)]
-    except KeyError:
-        print(f'Unknown color specified: {input}')
-        output = [color_default]
     return output
 
 
-def translate_color(input, color_mode):
+def get_color_translation(translate: Dict[Color, str], input: Colors) -> List[str]:
+    """Return list of colors translations from either a string of color names or :-separated hex colors."""
+    def from_hex(hex_input: str) -> str:
+        for color, hex in _color_hex.items():
+            if hex == hex_input:
+                return translate[color]
+        return f'({",".join(str(int(hex_input[i:i+2], 16)) for i in range(1, 6, 2))})'
+
+    return [from_hex(h) for h in input.lower().split(':')] if input[0] == '#' else \
+           [translate.get(input[i:i+2], '??') for i in range(0, len(input), 2)]
+
+
+def translate_color(input: Colors, color_mode: ColorMode) -> str:
     if input == '' or input is None:
         return ''
     upper = color_mode.isupper()
@@ -136,11 +169,11 @@ def translate_color(input, color_mode):
 
     color_mode = color_mode.lower()
     if color_mode == 'full':
-        output = "/".join([_color_full[input[i:i+2]] for i in range(0,len(input),2)])
+        output = "/".join(get_color_translation(_color_full, input))
     elif color_mode == 'hex':
         output = ':'.join(get_color_hex(input, pad=False))
     elif color_mode == 'ger':
-        output = "".join([_color_ger[input[i:i+2]] for i in range(0,len(input),2)])
+        output = "".join(get_color_translation(_color_ger, input))
     elif color_mode == 'short':
         output = input
     else:
diff --git a/src/wireviz/wv_gv_html.py b/src/wireviz/wv_gv_html.py
index ee5b2e28..0b843db5 100644
--- a/src/wireviz/wv_gv_html.py
+++ b/src/wireviz/wv_gv_html.py
@@ -1,19 +1,19 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from typing import List, Union
+from typing import List, Optional, Union
 import re
 
+from wireviz.DataClasses import Color
 from wireviz.wv_colors import translate_color
 from wireviz.wv_helper import remove_links
 
-def nested_html_table(rows):
+def nested_html_table(rows: List[Union[str, List[Optional[str]], None]], table_attrs: str = '') -> str:
     # input: list, each item may be scalar or list
     # output: a parent table with one child table per parent item that is list, and one cell per parent item that is scalar
     # purpose: create the appearance of one table, where cell widths are independent between rows
     # attributes in any leading <tdX> inside a list are injected into to the preceeding <td> tag
     html = []
-    html.append('<table border="0" cellspacing="0" cellpadding="0">')
+    html.append(f'<table border="0" cellspacing="0" cellpadding="0"{table_attrs or ""}>')
     for row in rows:
         if isinstance(row, List):
             if len(row) > 0 and any(row):
@@ -32,8 +32,17 @@ def nested_html_table(rows):
     html.append('</table>')
     return html
 
-def html_colorbar(color):
-    return f'<tdX bgcolor="{translate_color(color, "HEX")}" width="4">' if color else None
+def html_bgcolor_attr(color: Color) -> str:
+    """Return attributes for bgcolor or '' if no color."""
+    return f' bgcolor="{translate_color(color, "HEX")}"' if color else ''
+
+def html_bgcolor(color: Color, _extra_attr: str = '') -> str:
+    """Return <td> attributes prefix for bgcolor or '' if no color."""
+    return f'<tdX{html_bgcolor_attr(color)}{_extra_attr}>' if color else ''
+
+def html_colorbar(color: Color) -> str:
+    """Return <tdX> attributes prefix for bgcolor and minimum width or None if no color."""
+    return html_bgcolor(color, ' width="4"') if color else None
 
 def html_image(image):
     from wireviz.DataClasses import Image
@@ -49,11 +58,12 @@ def html_image(image):
      <td{html}</td>
     </tr></table>
    '''
-    return f'''<tdX{' sides="TLR"' if image.caption else ''}{html}'''
+    return f'''<tdX{' sides="TLR"' if image.caption else ''}{html_bgcolor_attr(image.bgcolor)}{html}'''
 
 def html_caption(image):
     from wireviz.DataClasses import Image
-    return f'<tdX sides="BLR">{html_line_breaks(image.caption)}' if image and image.caption else None
+    return (f'<tdX sides="BLR"{html_bgcolor_attr(image.bgcolor)}>{html_line_breaks(image.caption)}'
+                if image and image.caption else None)
 
 def html_size_attr(image):
     from wireviz.DataClasses import Image
diff --git a/src/wireviz/wv_helper.py b/src/wireviz/wv_helper.py
index a7fb6e4f..5d42d3e9 100644
--- a/src/wireviz/wv_helper.py
+++ b/src/wireviz/wv_helper.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 from typing import List
diff --git a/src/wireviz/wv_html.py b/src/wireviz/wv_html.py
index 7fc8e9f3..37773f7f 100644
--- a/src/wireviz/wv_html.py
+++ b/src/wireviz/wv_html.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 from pathlib import Path
diff --git a/tutorial/readme.md b/tutorial/readme.md
index 5361dfa7..ee64faf5 100644
--- a/tutorial/readme.md
+++ b/tutorial/readme.md
@@ -324,25 +324,47 @@ connections:
 [Source](tutorial07.yml) - [Bill of Materials](tutorial07.bom.tsv)
 
 
-## 08 - Part numbers
+## 08 - Part numbers and additional components
 
 * Part number information can be added to parts
   * Only provided fields will be added to the diagram and bom
 * Bundles can have part information specified by wire
-* Additional parts can be added to the bom
+* Additional parts can be added to components or just to the bom
+  * quantities of additional components can be multiplied by features from parent connector or cable
 
 
 ```yaml
+options:
+  mini_bom_mode: false
+
 connectors:
   X1: &template1 # define a template for later use
     type: Molex KK 254
     pincount: 4
     subtype: female
-    manufacturer: Molex # set manufacter name
-    mpn: 22013047 # set manufacturer part number
+    manufacturer: '<a href="https://www.molex.com/">Molex</a>' # set manufacter name
+    mpn: '<a href="https://www.molex.com/molex/products/part-detail/crimp_housings/0022013047">22013047</a>' # set manufacturer part number
+    supplier: Digimouse
+    spn: 1234
+    # add a list of additional components to a part (shown in graph)
+    additional_components:
+      -
+        type: Crimp # short identifier used in graph
+        subtype: Molex KK 254, 22-30 AWG # extra information added to type in bom
+        qty_multiplier: populated # multipier for quantity (number of populated pins)
+        manufacturer: Molex # set manufacter name
+        mpn: 08500030 # set manufacturer part number
+      -
+        type: Test
+        qty: 1
+        pn: ABC
+        manufacturer: Molex
+        mpn: 45454
+        supplier: Mousikey
+        spn: 9999
   X2:
     <<: *template1 # reuse template
-    pn: CON4 # set an internal part number
+    pn: CON4 # set an internal part number for just this connector
   X3:
     <<: *template1 # reuse template
 
@@ -354,6 +376,8 @@ cables:
     color_code: IEC
     manufacturer: CablesCo
     mpn: ABC123
+    supplier: Cables R Us
+    spn: 999-888-777
     pn: CAB1
   W2:
     category: bundle
@@ -362,7 +386,17 @@ cables:
     colors: [YE, BK, BK, RD]
     manufacturer: [WiresCo,WiresCo,WiresCo,WiresCo] # set a manufacter per wire
     mpn: [W1-YE,W1-BK,W1-BK,W1-RD]
+    supplier: [WireShack,WireShack,WireShack,WireShack]
+    spn: [1001,1002,1002,1009]
     pn: [WIRE1,WIRE2,WIRE2,WIRE3]
+    # add a list of additional components to a part (shown in graph)
+    additional_components:
+      -
+        type: Sleve # short identifier used in graph
+        subtype: Braided nylon, black, 3mm # extra information added to type in bom
+        qty_multiplier: length # multipier for quantity (length of cable)
+        unit: m
+        pn: SLV-1
 
 
 connections:
@@ -376,14 +410,14 @@ connections:
     - X3: [1-4]
 
 additional_bom_items:
-  - # define an additional item to add to the bill of materials
+  - # define an additional item to add to the bill of materials (does not appear in graph)
     description: Label, pinout information
     qty: 2
     designators:
       - X2
       - X3
-    manufacturer: generic company
-    mpn: Label1
+    manufacturer: '<a href="https://www.bradyid.com">Brady</a>'
+    mpn: '<a href="https://www.bradyid.com/wire-cable-labels/bmp71-bmp61-m611-tls-2200-nylon-cloth-wire-general-id-labels-cps-2958789">B-499</a>'
     pn: Label-ID-1
 ```
 
diff --git a/tutorial/tutorial01.bom.tsv b/tutorial/tutorial01.bom.tsv
index ff469a84..78d7659e 100644
--- a/tutorial/tutorial01.bom.tsv
+++ b/tutorial/tutorial01.bom.tsv
@@ -1,3 +1,3 @@
-Item	Qty	Unit	Designators
-Connector, 4 pins	2		X1, X2
-Cable, 4 wires	1	m	W1
+Id	Description	Qty	Unit	Designators
+1	Cable, 4 wires	1	m	W1
+2	Connector, 4 pins	2		X1, X2
diff --git a/tutorial/tutorial01.gv b/tutorial/tutorial01.gv
index 0bff27c6..a825600c 100644
--- a/tutorial/tutorial01.gv
+++ b/tutorial/tutorial01.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -33,7 +33,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -63,7 +63,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ffffff:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -94,7 +94,9 @@ graph {
    <tr><td>&nbsp;</td></tr>
    <tr>
     <td>X1:1</td>
-    <td></td>
+    <td>
+     1
+    </td>
     <td>X2:1</td>
    </tr>
    <tr>
@@ -108,7 +110,9 @@ graph {
    </tr>
    <tr>
     <td>X1:2</td>
-    <td></td>
+    <td>
+     2
+    </td>
     <td>X2:2</td>
    </tr>
    <tr>
@@ -122,7 +126,9 @@ graph {
    </tr>
    <tr>
     <td>X1:3</td>
-    <td></td>
+    <td>
+     3
+    </td>
     <td>X2:3</td>
    </tr>
    <tr>
@@ -136,7 +142,9 @@ graph {
    </tr>
    <tr>
     <td>X1:4</td>
-    <td></td>
+    <td>
+     4
+    </td>
     <td>X2:4</td>
    </tr>
    <tr>
@@ -152,5 +160,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 }
diff --git a/tutorial/tutorial01.html b/tutorial/tutorial01.html
index ea94b0dd..00c5502a 100644
--- a/tutorial/tutorial01.html
+++ b/tutorial/tutorial01.html
@@ -1,140 +1,170 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
- <meta name="generator" content="WireViz 0.2 - https://github.com/formatc1702/WireViz">
- <title>WireViz Diagram and BOM</title>
-</head><body style="font-family:Arial">
-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>tutorial01</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>tutorial01</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
  -->
 <!-- Pages: 1 -->
-<svg width="472pt" height="192pt"
- viewBox="0.00 0.00 472.00 192.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<svg width="489pt" height="192pt"
+ viewBox="0.00 0.00 489.00 192.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
 <g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 188)">
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+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-188 485,-188 485,4 -4,4"/>
 <!-- X1 -->
 <g id="node1" class="node">
 <title>X1</title>
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-<text text-anchor="start" x="23.5" y="-21.8" font-family="arial" font-size="14.00">4</text>
+<polygon fill="#ffffff" stroke="black" points="40,-152 0,-152 0,-14 40,-14 40,-152"/>
+<polygon fill="none" stroke="black" points="0,-129 0,-152 40,-152 40,-129 0,-129"/>
+<text text-anchor="start" x="11" y="-136.8" font-family="arial" font-size="14.00">X1</text>
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 </g>
 <!-- W1 -->
 <g id="node3" class="node">
 <title>W1</title>
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diff --git a/tutorial/tutorial02.bom.tsv b/tutorial/tutorial02.bom.tsv
index 726ee4d4..582b78a2 100644
--- a/tutorial/tutorial02.bom.tsv
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-Item	Qty	Unit	Designators
-Connector, Molex KK 254, female, 4 pins	2		X1, X2
-Cable, 4 x 0.25 mm²	1	m	W1
+Id	Description	Qty	Unit	Designators
+1	Cable, 4 x 0.25 mm²	1	m	W1
+2	Connector, Molex KK 254, female, 4 pins	2		X1, X2
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diff --git a/tutorial/tutorial03.bom.tsv b/tutorial/tutorial03.bom.tsv
index a9c25a8e..51f8e366 100644
--- a/tutorial/tutorial03.bom.tsv
+++ b/tutorial/tutorial03.bom.tsv
@@ -1,3 +1,3 @@
-Item	Qty	Unit	Designators
-Connector, Molex KK 254, female, 4 pins	2		X1, X2
-Cable, 4 x 0.25 mm² shielded	1	m	W1
+Id	Description	Qty	Unit	Designators
+1	Cable, 4 x 0.25 mm² shielded	1	m	W1
+2	Connector, Molex KK 254, female, 4 pins	2		X1, X2
diff --git a/tutorial/tutorial03.gv b/tutorial/tutorial03.gv
index 42fe4e3f..47a17afb 100644
--- a/tutorial/tutorial03.gv
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+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
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 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -75,7 +75,7 @@ graph {
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  </td></tr>
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+> fillcolor="#FFFFFF" shape=box style=filled]
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 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
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-    <td>X1:1</td>
-    <td>WH</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     1:WH
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -123,9 +125,11 @@ graph {
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    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>BN</td>
-    <td>X2:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     2:BN
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -137,9 +141,11 @@ graph {
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    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>GN</td>
-    <td>X2:4</td>
+    <td>X1:3:RX</td>
+    <td>
+     3:GN
+    </td>
+    <td>X2:4:TX</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -151,9 +157,11 @@ graph {
     </td>
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    <tr>
-    <td>X1:4</td>
-    <td>YE</td>
-    <td>X2:3</td>
+    <td>X1:4:TX</td>
+    <td>
+     4:YE
+    </td>
+    <td>X2:3:RX</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
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    </tr>
    <tr><td>&nbsp;</td></tr>
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-    <td>X1:1</td>
+    <td>X1:1:GND</td>
     <td>Shield</td>
     <td><!-- s_out --></td>
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  </td></tr>
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+> fillcolor="#FFFFFF" shape=box style=filled]
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diff --git a/tutorial/tutorial03.html b/tutorial/tutorial03.html
index 6da9e561..3eedf2df 100644
--- a/tutorial/tutorial03.html
+++ b/tutorial/tutorial03.html
@@ -1,181 +1,207 @@
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+ <title>tutorial03</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>tutorial03</h1>
+<h2>Diagram</h2>
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 <g id="node2" class="node">
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diff --git a/tutorial/tutorial04.bom.tsv b/tutorial/tutorial04.bom.tsv
index 92f70f84..e2c3835d 100644
--- a/tutorial/tutorial04.bom.tsv
+++ b/tutorial/tutorial04.bom.tsv
@@ -1,4 +1,4 @@
-Item	Qty	Unit	Designators
-Connector, Molex KK 254, female, 4 pins	2		X2, X3
-Connector, Molex KK 254, male, 4 pins	1		X1
-Cable, 4 x 24 AWG	0.4	m	W1, W2
+Id	Description	Qty	Unit	Designators
+1	Cable, 4 x 24 AWG	0.4	m	W1, W2
+2	Connector, Molex KK 254, female, 4 pins	2		X2, X3
+3	Connector, Molex KK 254, male, 4 pins	1		X1
diff --git a/tutorial/tutorial04.gv b/tutorial/tutorial04.gv
index e2a63f33..56baeeb9 100644
--- a/tutorial/tutorial04.gv
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-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
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 <table border="0" cellspacing="0" cellpadding="0">
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 	W1:w1:e -- X2:p1l:w
@@ -161,9 +161,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>BN</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     1:BN
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -175,9 +177,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>RD</td>
-    <td>X2:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     2:RD
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -189,9 +193,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>OG</td>
-    <td>X2:3</td>
+    <td>X1:3:SCL</td>
+    <td>
+     3:OG
+    </td>
+    <td>X2:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -203,9 +209,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:4</td>
-    <td>YE</td>
-    <td>X2:4</td>
+    <td>X1:4:SDA</td>
+    <td>
+     4:YE
+    </td>
+    <td>X2:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -225,7 +233,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#895956:#000000"]
 	X2:p1r:e -- W2:w1:w
 	W2:w1:e -- X3:p1l:w
@@ -256,9 +264,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X2:1</td>
-    <td>BN</td>
-    <td>X3:1</td>
+    <td>X2:1:GND</td>
+    <td>
+     1:BN
+    </td>
+    <td>X3:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -270,9 +280,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X2:2</td>
-    <td>RD</td>
-    <td>X3:2</td>
+    <td>X2:2:VCC</td>
+    <td>
+     2:RD
+    </td>
+    <td>X3:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -284,9 +296,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X2:3</td>
-    <td>OG</td>
-    <td>X3:3</td>
+    <td>X2:3:SCL</td>
+    <td>
+     3:OG
+    </td>
+    <td>X3:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -298,9 +312,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X2:4</td>
-    <td>YE</td>
-    <td>X3:4</td>
+    <td>X2:4:SDA</td>
+    <td>
+     4:YE
+    </td>
+    <td>X3:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -320,5 +336,5 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 }
diff --git a/tutorial/tutorial04.html b/tutorial/tutorial04.html
index 74dc9443..7e9d02d3 100644
--- a/tutorial/tutorial04.html
+++ b/tutorial/tutorial04.html
@@ -1,312 +1,345 @@
 <!DOCTYPE html>
 <html lang="en"><head>
  <meta charset="UTF-8">
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-<h1>Diagram</h1><!-- XML and DOCTYPE declarations from SVG file removed -->
-<!-- Generated by graphviz version 2.44.1 (20200629.0846)
+ <meta name="generator" content="WireViz 0.4-dev - https://github.com/formatc1702/WireViz">
+ <title>tutorial04</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>tutorial04</h1>
+<h2>Diagram</h2>
+<!-- XML and DOCTYPE declarations from SVG file removed -->
+<!-- Generated by graphviz version 2.49.0 (20210828.1703)
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+<svg width="1551pt" height="215pt"
+ viewBox="0.00 0.00 1551.00 215.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-211 1547,-211 1547,4 -4,4"/>
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+<polygon fill="#ffffff" stroke="black" points="175,-175 0,-175 0,-14 175,-14 175,-175"/>
+<polygon fill="none" stroke="black" points="0.5,-151.5 0.5,-174.5 175.5,-174.5 175.5,-151.5 0.5,-151.5"/>
+<text text-anchor="start" x="79" y="-159.3" font-family="arial" font-size="14.00">X1</text>
+<polygon fill="none" stroke="black" points="0.5,-128.5 0.5,-151.5 96.5,-151.5 96.5,-128.5 0.5,-128.5"/>
 <text text-anchor="start" x="4.5" y="-136.3" font-family="arial" font-size="14.00">Molex KK 254</text>
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+<text text-anchor="start" x="134" y="-44.3" font-family="arial" font-size="14.00">4</text>
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+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">3</td>
+  <td style="border:1px solid #000000; padding: 4px">Connector, Molex KK 254, male, 4 pins</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X1</td>
+ </tr>
+</table>
+</body></html>
diff --git a/tutorial/tutorial04.png b/tutorial/tutorial04.png
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-<polygon fill="none" stroke="black" points="666,-105.5 666,-128.5 742,-128.5 742,-105.5 666,-105.5"/>
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+<polygon fill="none" stroke="black" points="672.5,-151.5 672.5,-174.5 859.5,-174.5 859.5,-151.5 672.5,-151.5"/>
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+<polygon fill="none" stroke="black" points="672.5,-128.5 672.5,-151.5 768.5,-151.5 768.5,-128.5 672.5,-128.5"/>
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+<text text-anchor="start" x="772.5" y="-136.3" font-family="arial" font-size="14.00">female</text>
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+<polygon fill="none" stroke="black" points="727.5,-105.5 727.5,-128.5 805.5,-128.5 805.5,-105.5 727.5,-105.5"/>
+<text text-anchor="start" x="750.5" y="-113.3" font-family="arial" font-size="14.00">GND</text>
+<polygon fill="none" stroke="black" points="805.5,-105.5 805.5,-128.5 859.5,-128.5 859.5,-105.5 805.5,-105.5"/>
+<text text-anchor="start" x="828.5" y="-113.3" font-family="arial" font-size="14.00">1</text>
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+<text text-anchor="start" x="696" y="-90.3" font-family="arial" font-size="14.00">2</text>
+<polygon fill="none" stroke="black" points="727.5,-82.5 727.5,-105.5 805.5,-105.5 805.5,-82.5 727.5,-82.5"/>
+<text text-anchor="start" x="751.5" y="-90.3" font-family="arial" font-size="14.00">VCC</text>
+<polygon fill="none" stroke="black" points="805.5,-82.5 805.5,-105.5 859.5,-105.5 859.5,-82.5 805.5,-82.5"/>
+<text text-anchor="start" x="828.5" y="-90.3" font-family="arial" font-size="14.00">2</text>
+<polygon fill="none" stroke="black" points="672.5,-59.5 672.5,-82.5 727.5,-82.5 727.5,-59.5 672.5,-59.5"/>
+<text text-anchor="start" x="696" y="-67.3" font-family="arial" font-size="14.00">3</text>
+<polygon fill="none" stroke="black" points="727.5,-59.5 727.5,-82.5 805.5,-82.5 805.5,-59.5 727.5,-59.5"/>
+<text text-anchor="start" x="752.5" y="-67.3" font-family="arial" font-size="14.00">SCL</text>
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+<text text-anchor="start" x="828.5" y="-67.3" font-family="arial" font-size="14.00">3</text>
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+<polygon fill="none" stroke="black" points="727.5,-36.5 727.5,-59.5 805.5,-59.5 805.5,-36.5 727.5,-36.5"/>
+<text text-anchor="start" x="752" y="-44.3" font-family="arial" font-size="14.00">SDA</text>
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+<text text-anchor="start" x="828.5" y="-44.3" font-family="arial" font-size="14.00">4</text>
+<polygon fill="none" stroke="black" points="672.5,-13.5 672.5,-36.5 859.5,-36.5 859.5,-13.5 672.5,-13.5"/>
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 <g id="node5" class="node">
 <title>W2</title>
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-<text text-anchor="start" x="1054" y="-168.3" font-family="arial" font-size="14.00">0.1 m</text>
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+<polygon fill="#ffffff" stroke="black" points="1212,-207 1003,-207 1003,0 1212,0 1212,-207"/>
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+<text text-anchor="start" x="1097.5" y="-191.3" font-family="arial" font-size="14.00">W2</text>
+<polygon fill="none" stroke="black" points="1003.5,-160.5 1003.5,-183.5 1054.5,-183.5 1054.5,-160.5 1003.5,-160.5"/>
+<text text-anchor="start" x="1021.5" y="-168.3" font-family="arial" font-size="14.00">4x</text>
+<polygon fill="none" stroke="black" points="1054.5,-160.5 1054.5,-183.5 1141.5,-183.5 1141.5,-160.5 1054.5,-160.5"/>
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+<polygon fill="none" stroke="black" points="1141.5,-160.5 1141.5,-183.5 1212.5,-183.5 1212.5,-160.5 1141.5,-160.5"/>
+<text text-anchor="start" x="1159" y="-168.3" font-family="arial" font-size="14.00">0.1 m</text>
+<text text-anchor="start" x="1035.5" y="-147.3" font-family="arial" font-size="14.00"> </text>
+<text text-anchor="start" x="1005.5" y="-128.3" font-family="arial" font-size="14.00">X2:1:GND</text>
+<text text-anchor="start" x="1074.5" y="-128.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;1:BN &#160;&#160;&#160;</text>
+<text text-anchor="start" x="1146.5" y="-128.3" font-family="arial" font-size="14.00">X3:1:GND</text>
+<polygon fill="#000000" stroke="transparent" points="1003.5,-120.5 1003.5,-122.5 1212.5,-122.5 1212.5,-120.5 1003.5,-120.5"/>
+<polygon fill="#895956" stroke="transparent" points="1003.5,-118.5 1003.5,-120.5 1212.5,-120.5 1212.5,-118.5 1003.5,-118.5"/>
+<polygon fill="#000000" stroke="transparent" points="1003.5,-116.5 1003.5,-118.5 1212.5,-118.5 1212.5,-116.5 1003.5,-116.5"/>
+<text text-anchor="start" x="1006" y="-103.3" font-family="arial" font-size="14.00">X2:2:VCC</text>
+<text text-anchor="start" x="1074.5" y="-103.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;2:RD &#160;&#160;&#160;</text>
+<text text-anchor="start" x="1147" y="-103.3" font-family="arial" font-size="14.00">X3:2:VCC</text>
+<polygon fill="#000000" stroke="transparent" points="1003.5,-95.5 1003.5,-97.5 1212.5,-97.5 1212.5,-95.5 1003.5,-95.5"/>
+<polygon fill="#ff0000" stroke="transparent" points="1003.5,-93.5 1003.5,-95.5 1212.5,-95.5 1212.5,-93.5 1003.5,-93.5"/>
+<polygon fill="#000000" stroke="transparent" points="1003.5,-91.5 1003.5,-93.5 1212.5,-93.5 1212.5,-91.5 1003.5,-91.5"/>
+<text text-anchor="start" x="1007.5" y="-78.3" font-family="arial" font-size="14.00">X2:3:SCL</text>
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+<text text-anchor="start" x="1148.5" y="-78.3" font-family="arial" font-size="14.00">X3:3:SCL</text>
+<polygon fill="#000000" stroke="transparent" points="1003.5,-70.5 1003.5,-72.5 1212.5,-72.5 1212.5,-70.5 1003.5,-70.5"/>
+<polygon fill="#ff8000" stroke="transparent" points="1003.5,-68.5 1003.5,-70.5 1212.5,-70.5 1212.5,-68.5 1003.5,-68.5"/>
+<polygon fill="#000000" stroke="transparent" points="1003.5,-66.5 1003.5,-68.5 1212.5,-68.5 1212.5,-66.5 1003.5,-66.5"/>
+<text text-anchor="start" x="1006.5" y="-53.3" font-family="arial" font-size="14.00">X2:4:SDA</text>
+<text text-anchor="start" x="1075" y="-53.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;4:YE &#160;&#160;&#160;</text>
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+<polygon fill="#ffff00" stroke="transparent" points="1003.5,-43.5 1003.5,-45.5 1212.5,-45.5 1212.5,-43.5 1003.5,-43.5"/>
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+<polygon fill="none" stroke="black" points="1003.5,0.5 1003.5,-22.5 1212.5,-22.5 1212.5,0.5 1003.5,0.5"/>
+<text text-anchor="start" x="1030" y="-7.3" font-family="arial" font-size="14.00">This cable is a bit shorter</text>
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 <!-- X2&#45;&#45;W2 -->
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 <title>X2:e&#45;&#45;W2:w</title>
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+<path fill="none" stroke="#000000" stroke-width="2" d="M859,-115.5C923.25,-115.52 939.24,-117.52 1003,-117.5"/>
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 <!-- X2&#45;&#45;W2 -->
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+<path fill="none" stroke="#000000" stroke-width="2" d="M859,-91.5C923.13,-91.5 939.12,-92.5 1003,-92.5"/>
+<path fill="none" stroke="#ff0000" stroke-width="2" d="M859,-93.5C923,-93.5 939,-94.5 1003,-94.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M859,-95.5C922.88,-95.5 938.87,-96.5 1003,-96.5"/>
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 <!-- X2&#45;&#45;W2 -->
 <g id="edge13" class="edge">
 <title>X2:e&#45;&#45;W2:w</title>
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 <!-- X2&#45;&#45;W2 -->
 <g id="edge15" class="edge">
 <title>X2:e&#45;&#45;W2:w</title>
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diff --git a/tutorial/tutorial05.bom.tsv b/tutorial/tutorial05.bom.tsv
index d7f405d6..607f55b5 100644
--- a/tutorial/tutorial05.bom.tsv
+++ b/tutorial/tutorial05.bom.tsv
@@ -1,6 +1,6 @@
-Item	Qty	Unit	Designators
-Connector, Crimp ferrule, 0.5 mm², OG	4		
-Connector, Molex 8981, female, 4 pins	1		X1
-Wire, 0.5 mm², BK	0.6	m	W1
-Wire, 0.5 mm², RD	0.3	m	W1
-Wire, 0.5 mm², YE	0.3	m	W1
+Id	Description	Qty	Unit	Designators
+1	Connector, Crimp ferrule, 0.5 mm², OG	4		
+2	Connector, Molex 8981, female, 4 pins	1		X1
+3	Wire, 0.5 mm², BK	0.6	m	W1
+4	Wire, 0.5 mm², RD	0.3	m	W1
+5	Wire, 0.5 mm², YE	0.3	m	W1
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-    <td>X1:1</td>
+    <td>
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+    <td>X1:1:+12V</td>
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-    <td>X1:2</td>
+    <td>
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+    <td>X1:2:GND</td>
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-    <td>X1:4</td>
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+<text text-anchor="start" x="645.5" y="-44.3" font-family="arial" font-size="14.00">4</text>
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 <title>_F1_1</title>
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-<text text-anchor="start" x="91" y="-193.8" font-family="arial" font-size="14.00">0.5 mm²</text>
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-<polygon fill="none" stroke="black" points="178,-186 178,-209 186,-209 186,-186 178,-186"/>
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+<polygon fill="none" stroke="black" points="89.5,-140.5 89.5,-163.5 149.5,-163.5 149.5,-140.5 89.5,-140.5"/>
+<text text-anchor="start" x="93.5" y="-148.3" font-family="arial" font-size="14.00">0.5 mm²</text>
+<polygon fill="none" stroke="black" points="149.5,-140.5 149.5,-163.5 179.5,-163.5 179.5,-140.5 149.5,-140.5"/>
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-<polygon fill="none" stroke="black" points="330,-209 330,-232 456,-232 456,-209 330,-209"/>
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-<text text-anchor="start" x="416" y="-78.8" font-family="arial" font-size="14.00">X1:4</text>
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-<polygon fill="#ff0000" stroke="transparent" points="330,-69 330,-71 456,-71 456,-69 330,-69"/>
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+<polygon fill="#ffffff" stroke="black" stroke-dasharray="5,2" points="469,-206.5 331,-206.5 331,-22.5 469,-22.5 469,-206.5"/>
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+<text text-anchor="start" x="389.5" y="-191.3" font-family="arial" font-size="14.00">W1</text>
+<polygon fill="none" stroke="black" points="331,-160.5 331,-183.5 358,-183.5 358,-160.5 331,-160.5"/>
+<text text-anchor="start" x="337" y="-168.3" font-family="arial" font-size="14.00">4x</text>
+<polygon fill="none" stroke="black" points="358,-160.5 358,-183.5 422,-183.5 422,-160.5 358,-160.5"/>
+<text text-anchor="start" x="364" y="-168.3" font-family="arial" font-size="14.00">0.5 mm²</text>
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+<text text-anchor="start" x="333" y="-147.3" font-family="arial" font-size="14.00"> </text>
+<text text-anchor="start" x="342" y="-128.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;YE &#160;&#160;&#160;</text>
+<text text-anchor="start" x="401" y="-128.3" font-family="arial" font-size="14.00">X1:1:+12V</text>
+<polygon fill="#000000" stroke="transparent" points="331,-120.5 331,-122.5 469,-122.5 469,-120.5 331,-120.5"/>
+<polygon fill="#ffff00" stroke="transparent" points="331,-118.5 331,-120.5 469,-120.5 469,-118.5 331,-118.5"/>
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+<text text-anchor="start" x="342" y="-103.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;BK &#160;&#160;&#160;</text>
+<text text-anchor="start" x="402" y="-103.3" font-family="arial" font-size="14.00">X1:2:GND</text>
+<polygon fill="#000000" stroke="transparent" points="331,-95.5 331,-97.5 469,-97.5 469,-95.5 331,-95.5"/>
+<polygon fill="#000000" stroke="transparent" points="331,-93.5 331,-95.5 469,-95.5 469,-93.5 331,-93.5"/>
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+<text text-anchor="start" x="342" y="-78.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;BK &#160;&#160;&#160;</text>
+<text text-anchor="start" x="402" y="-78.3" font-family="arial" font-size="14.00">X1:3:GND</text>
+<polygon fill="#000000" stroke="transparent" points="331,-70.5 331,-72.5 469,-72.5 469,-70.5 331,-70.5"/>
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+<text text-anchor="start" x="341" y="-53.3" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;RD &#160;&#160;&#160;</text>
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+<polygon fill="#ff0000" stroke="transparent" points="331,-43.5 331,-45.5 469,-45.5 469,-43.5 331,-43.5"/>
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+<text text-anchor="start" x="333" y="-28.3" font-family="arial" font-size="14.00"> </text>
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 <g id="edge1" class="edge">
 <title>_F1_1:e&#45;&#45;W1:w</title>
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-<path fill="none" stroke="#ffff00" stroke-width="2" d="M186,-198C254.2,-198 261.8,-145 330,-145"/>
-<path fill="none" stroke="#000000" stroke-width="2" d="M186,-200C256.18,-198.28 263.78,-145.28 330,-147"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M187,-150.5C250.79,-151.78 263.47,-118.78 331,-117.5"/>
+<path fill="none" stroke="#ffff00" stroke-width="2" d="M187,-152.5C252.66,-152.5 265.34,-119.5 331,-119.5"/>
+<path fill="none" stroke="#000000" stroke-width="2" d="M187,-154.5C254.53,-153.22 267.21,-120.22 331,-121.5"/>
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 <title>_F1_2</title>
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-<polygon fill="none" stroke="black" points="87,-126 87,-149 147,-149 147,-126 87,-126"/>
-<text text-anchor="start" x="91" y="-133.8" font-family="arial" font-size="14.00">0.5 mm²</text>
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-<polygon fill="#ff8000" stroke="transparent" points="178,-126 178,-149 186,-149 186,-126 178,-126"/>
-<polygon fill="none" stroke="black" points="178,-126 178,-149 186,-149 186,-126 178,-126"/>
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+<polygon fill="none" stroke="black" points="89.5,-93.5 89.5,-116.5 149.5,-116.5 149.5,-93.5 89.5,-93.5"/>
+<text text-anchor="start" x="93.5" y="-101.3" font-family="arial" font-size="14.00">0.5 mm²</text>
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+<text text-anchor="start" x="153.5" y="-101.3" font-family="arial" font-size="14.00">OG</text>
+<polygon fill="#ff8000" stroke="transparent" points="179.5,-93.5 179.5,-116.5 187.5,-116.5 187.5,-93.5 179.5,-93.5"/>
+<polygon fill="none" stroke="black" points="179.5,-93.5 179.5,-116.5 187.5,-116.5 187.5,-93.5 179.5,-93.5"/>
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 <g id="edge3" class="edge">
 <title>_F1_2:e&#45;&#45;W1:w</title>
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-<path fill="none" stroke="#000000" stroke-width="2" d="M186,-138C250.5,-138 265.5,-120 330,-120"/>
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-<polygon fill="none" stroke="black" points="87,-66 87,-89 147,-89 147,-66 87,-66"/>
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-<polygon fill="none" stroke="black" points="178,-66 178,-89 186,-89 186,-66 178,-66"/>
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diff --git a/tutorial/tutorial06.bom.tsv b/tutorial/tutorial06.bom.tsv
index 04ff66cc..b86b323c 100644
--- a/tutorial/tutorial06.bom.tsv
+++ b/tutorial/tutorial06.bom.tsv
@@ -1,7 +1,7 @@
-Item	Qty	Unit	Designators
-Connector, Crimp ferrule, 0.5 mm², OG	2		
-Connector, Crimp ferrule, 1.0 mm², YE	1		
-Connector, Molex 8981, female, 4 pins	1		X1
-Wire, 0.5 mm², BK	0.6	m	W1
-Wire, 0.5 mm², RD	0.3	m	W1
-Wire, 0.5 mm², YE	0.3	m	W1
+Id	Description	Qty	Unit	Designators
+1	Connector, Crimp ferrule, 0.5 mm², OG	2		
+2	Connector, Crimp ferrule, 1.0 mm², YE	1		
+3	Connector, Molex 8981, female, 4 pins	1		X1
+4	Wire, 0.5 mm², BK	0.6	m	W1
+5	Wire, 0.5 mm², RD	0.3	m	W1
+6	Wire, 0.5 mm², YE	0.3	m	W1
diff --git a/tutorial/tutorial06.gv b/tutorial/tutorial06.gv
index 028ebe5c..3b0fb8e1 100644
--- a/tutorial/tutorial06.gv
+++ b/tutorial/tutorial06.gv
@@ -1,8 +1,8 @@
 graph {
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+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
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 <table border="0" cellspacing="0" cellpadding="0">
@@ -39,7 +39,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	F_10 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -51,7 +51,7 @@ graph {
   </tr></table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
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  <tr><td>
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  </td></tr>
 </table>
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+> fillcolor="#FFFFFF" shape=box style=filled]
 	_F_05_2 [label=<
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  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ffff00:#000000"]
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 	W1:w1:e -- X1:p1l:w
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    <tr><td>&nbsp;</td></tr>
    <tr>
     <td></td>
-    <td>YE</td>
-    <td>X1:1</td>
+    <td>
+     YE
+    </td>
+    <td>X1:1:+12V</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
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    </tr>
    <tr>
     <td></td>
-    <td>BK</td>
-    <td>X1:2</td>
+    <td>
+     BK
+    </td>
+    <td>X1:2:GND</td>
    </tr>
    <tr>
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    </tr>
    <tr>
     <td></td>
-    <td>BK</td>
-    <td>X1:3</td>
+    <td>
+     BK
+    </td>
+    <td>X1:3:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -149,8 +155,10 @@ graph {
    </tr>
    <tr>
     <td></td>
-    <td>RD</td>
-    <td>X1:4</td>
+    <td>
+     RD
+    </td>
+    <td>X1:4:+5V</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -165,5 +173,5 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 }
diff --git a/tutorial/tutorial06.html b/tutorial/tutorial06.html
index 583e90df..21df96aa 100644
--- a/tutorial/tutorial06.html
+++ b/tutorial/tutorial06.html
@@ -1,176 +1,230 @@
 <!DOCTYPE html>
 <html lang="en"><head>
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+<h1>tutorial06</h1>
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diff --git a/tutorial/tutorial06.png b/tutorial/tutorial06.png
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diff --git a/tutorial/tutorial07.bom.tsv b/tutorial/tutorial07.bom.tsv
index 7885f329..0c3d0dd2 100644
--- a/tutorial/tutorial07.bom.tsv
+++ b/tutorial/tutorial07.bom.tsv
@@ -1,6 +1,6 @@
-Item	Qty	Unit	Designators
-Connector, Molex KK 254, female, 4 pins	6		X1, X2, X3, X4, X5, X6
-Wire, 0.25 mm², PK	1.0	m	W1, W2, W3, W4, W5
-Wire, 0.25 mm², TQ	1.0	m	W1, W2, W3, W4, W5
-Wire, 0.25 mm², VT	1.0	m	W1, W2, W3, W4, W5
-Wire, 0.25 mm², YE	1.0	m	W1, W2, W3, W4, W5
+Id	Description	Qty	Unit	Designators
+1	Connector, Molex KK 254, female, 4 pins	6		X1, X2, X3, X4, X5, X6
+2	Wire, 0.25 mm², PK	1.0	m	W1, W2, W3, W4, W5
+3	Wire, 0.25 mm², TQ	1.0	m	W1, W2, W3, W4, W5
+4	Wire, 0.25 mm², VT	1.0	m	W1, W2, W3, W4, W5
+5	Wire, 0.25 mm², YE	1.0	m	W1, W2, W3, W4, W5
diff --git a/tutorial/tutorial07.gv b/tutorial/tutorial07.gv
index 2ec7ec0c..d101f2c0 100644
--- a/tutorial/tutorial07.gv
+++ b/tutorial/tutorial07.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -39,7 +39,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
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 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -75,7 +75,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
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 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -111,7 +111,7 @@ graph {
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  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
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 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
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   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
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 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
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   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
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 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -219,7 +219,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#00ffff:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -250,9 +250,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X1:1</td>
-    <td>TQ</td>
-    <td>X2:1</td>
+    <td>X1:1:GND</td>
+    <td>
+     TQ
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -264,9 +266,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:2</td>
-    <td>PK</td>
-    <td>X2:2</td>
+    <td>X1:2:VCC</td>
+    <td>
+     PK
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -278,9 +282,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:3</td>
-    <td>YE</td>
-    <td>X2:3</td>
+    <td>X1:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X2:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -292,9 +298,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X1:4</td>
-    <td>VT</td>
-    <td>X2:4</td>
+    <td>X1:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X2:4:SDA</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w4" height="6">
@@ -309,7 +317,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 	edge [color="#000000:#00ffff:#000000"]
 	X3:p1r:e -- W2:w1:w
 	W2:w1:e -- X2:p1l:w
@@ -340,9 +348,11 @@ graph {
   <table border="0" cellspacing="0" cellborder="0">
    <tr><td>&nbsp;</td></tr>
    <tr>
-    <td>X3:1</td>
-    <td>TQ</td>
-    <td>X2:1</td>
+    <td>X3:1:GND</td>
+    <td>
+     TQ
+    </td>
+    <td>X2:1:GND</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w1" height="6">
@@ -354,9 +364,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X3:2</td>
-    <td>PK</td>
-    <td>X2:2</td>
+    <td>X3:2:VCC</td>
+    <td>
+     PK
+    </td>
+    <td>X2:2:VCC</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w2" height="6">
@@ -368,9 +380,11 @@ graph {
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    </tr>
    <tr>
-    <td>X3:3</td>
-    <td>YE</td>
-    <td>X2:3</td>
+    <td>X3:3:SCL</td>
+    <td>
+     YE
+    </td>
+    <td>X2:3:SCL</td>
    </tr>
    <tr>
     <td colspan="3" border="0" cellspacing="0" cellpadding="0" port="w3" height="6">
@@ -382,9 +396,11 @@ graph {
     </td>
    </tr>
    <tr>
-    <td>X3:4</td>
-    <td>VT</td>
-    <td>X2:4</td>
+    <td>X3:4:SDA</td>
+    <td>
+     VT
+    </td>
+    <td>X2:4:SDA</td>
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-    <td>TQ</td>
-    <td>X4:1</td>
+    <td>X3:1:GND</td>
+    <td>
+     TQ
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+    <td>X4:1:GND</td>
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-    <td>PK</td>
-    <td>X4:2</td>
+    <td>X3:2:VCC</td>
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+    <td>X4:2:VCC</td>
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-    <td>YE</td>
-    <td>X4:3</td>
+    <td>X3:3:SCL</td>
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+    <td>X3:4:SDA</td>
+    <td>
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+    <td>X5:1:GND</td>
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-    <td>X4:3</td>
+    <td>X5:3:SCL</td>
+    <td>
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-    <td>X4:4</td>
+    <td>X5:4:SDA</td>
+    <td>
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-    <td>X5:1</td>
-    <td>TQ</td>
-    <td>X6:1</td>
+    <td>X5:1:GND</td>
+    <td>
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+    <td>X6:1:GND</td>
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-    <td>PK</td>
-    <td>X6:2</td>
+    <td>X5:2:VCC</td>
+    <td>
+     PK
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+    <td>X6:2:VCC</td>
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-    <td>X5:3</td>
-    <td>YE</td>
-    <td>X6:3</td>
+    <td>X5:3:SCL</td>
+    <td>
+     YE
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+    <td>X6:3:SCL</td>
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-    <td>VT</td>
-    <td>X6:4</td>
+    <td>X5:4:SDA</td>
+    <td>
+     VT
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+    <td>X6:4:SDA</td>
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diff --git a/tutorial/tutorial07.html b/tutorial/tutorial07.html
index 12d87418..fd226a10 100644
--- a/tutorial/tutorial07.html
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+<polygon fill="#00ffff" stroke="transparent" points="331.5,-304 331.5,-306 526.5,-306 526.5,-304 331.5,-304"/>
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+<text text-anchor="start" x="334" y="-80.8" font-family="arial" font-size="14.00">X5:2:VCC</text>
+<text text-anchor="start" x="402" y="-80.8" font-family="arial" font-size="14.00"> &#160;&#160;&#160;&#160;PK &#160;&#160;&#160;</text>
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 <!-- X5&#45;&#45;W5 -->
 <g id="edge35" class="edge">
 <title>X5:e&#45;&#45;W5:w</title>
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 <title>X5:e&#45;&#45;W5:w</title>
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diff --git a/tutorial/tutorial08.bom.tsv b/tutorial/tutorial08.bom.tsv
index 441f10bb..d425c969 100644
--- a/tutorial/tutorial08.bom.tsv
+++ b/tutorial/tutorial08.bom.tsv
@@ -1,8 +1,11 @@
-Item	Qty	Unit	Designators	P/N	Manufacturer	MPN
-Connector, Molex KK 254, female, 4 pins	2		X1, X3		Molex	22013047
-Connector, Molex KK 254, female, 4 pins	1		X2	CON4	Molex	22013047
-Cable, 4 x 0.25 mm²	1	m	W1	CAB1	CablesCo	ABC123
-Wire, 0.25 mm², BK	2	m	W2	WIRE2	WiresCo	W1-BK
-Wire, 0.25 mm², RD	1	m	W2	WIRE3	WiresCo	W1-RD
-Wire, 0.25 mm², YE	1	m	W2	WIRE1	WiresCo	W1-YE
-Label, pinout information	2		X2, X3	Label-ID-1	generic company	Label1
+Id	Description	Qty	Unit	Designators	P/N	Manufacturer	MPN	Supplier	SPN
+1	Cable, 4 x 0.25 mm²	1	m	W1	CAB1	CablesCo	ABC123	Cables R Us	999-888-777
+2	Connector, Molex KK 254, female, 4 pins	2		X1, X3		Molex	22013047	Digimouse	1234
+3	Connector, Molex KK 254, female, 4 pins	1		X2	CON4	Molex	22013047	Digimouse	1234
+4	Crimp, Molex KK 254, 22-30 AWG	12		X1, X2, X3		Molex	08500030		
+5	Label, pinout information	2		X2, X3	Label-ID-1	Brady	B-499		
+6	Sleve, Braided nylon, black, 3mm	1	m	W2	SLV-1				
+7	Test	3		X1, X2, X3	ABC	Molex	45454	Mousikey	9999
+8	Wire, 0.25 mm², BK	2	m	W2	WIRE2	WiresCo	W1-BK	WireShack	1002
+9	Wire, 0.25 mm², RD	1	m	W2	WIRE3	WiresCo	W1-RD	WireShack	1009
+10	Wire, 0.25 mm², YE	1	m	W2	WIRE1	WiresCo	W1-YE	WireShack	1001
diff --git a/tutorial/tutorial08.gv b/tutorial/tutorial08.gv
index 1bf2194d..97dffd8b 100644
--- a/tutorial/tutorial08.gv
+++ b/tutorial/tutorial08.gv
@@ -1,8 +1,8 @@
 graph {
-// Graph generated by WireViz 0.2
+// Graph generated by WireViz 0.4-dev
 // https://github.com/formatc1702/WireViz
-	graph [bgcolor=white fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
-	node [fillcolor=white fontname=arial shape=record style=filled]
+	graph [bgcolor="#FFFFFF" fontname=arial nodesep=0.33 rankdir=LR ranksep=2]
+	node [fillcolor="#FFFFFF" fontname=arial height=0 margin=0 shape=none style=filled width=0]
 	edge [fontname=arial style=bold]
 	X1 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
@@ -14,6 +14,7 @@ graph {
  <tr><td>
   <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
    <td balign="left">Molex: 22013047</td>
+   <td balign="left">Digimouse: 1234</td>
   </tr></table>
  </td></tr>
  <tr><td>
@@ -39,8 +40,23 @@ graph {
    </tr>
   </table>
  </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td balign="left">Additional components</td>
+  </tr></table>
+ </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td align="left" balign="left">4 x Crimp, Molex KK 254, 22-30 AWG<br/>Molex: 08500030</td>
+  </tr></table>
+ </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td align="left" balign="left">1 x Test<br/>P/N: ABC, Molex: 45454, Mousikey: 9999</td>
+  </tr></table>
+ </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X2 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -52,6 +68,7 @@ graph {
   <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
    <td balign="left">P/N: CON4</td>
    <td balign="left">Molex: 22013047</td>
+   <td balign="left">Digimouse: 1234</td>
   </tr></table>
  </td></tr>
  <tr><td>
@@ -77,8 +94,23 @@ graph {
    </tr>
   </table>
  </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td balign="left">Additional components</td>
+  </tr></table>
+ </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td align="left" balign="left">4 x Crimp, Molex KK 254, 22-30 AWG<br/>Molex: 08500030</td>
+  </tr></table>
+ </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td align="left" balign="left">1 x Test<br/>P/N: ABC, Molex: 45454, Mousikey: 9999</td>
+  </tr></table>
+ </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	X3 [label=<
 <table border="0" cellspacing="0" cellpadding="0">
  <tr><td>
@@ -89,6 +121,7 @@ graph {
  <tr><td>
   <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
    <td balign="left">Molex: 22013047</td>
+   <td balign="left">Digimouse: 1234</td>
   </tr></table>
  </td></tr>
  <tr><td>
@@ -114,8 +147,23 @@ graph {
    </tr>
   </table>
  </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td balign="left">Additional components</td>
+  </tr></table>
+ </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td align="left" balign="left">4 x Crimp, Molex KK 254, 22-30 AWG<br/>Molex: 08500030</td>
+  </tr></table>
+ </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td align="left" balign="left">1 x Test<br/>P/N: ABC, Molex: 45454, Mousikey: 9999</td>
+  </tr></table>
+ </td></tr>
 </table>
-> fillcolor=white margin=0 shape=none style=filled]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#895956:#000000"]
 	X1:p1r:e -- W1:w1:w
 	W1:w1:e -- X2:p1l:w
@@ -139,6 +187,7 @@ graph {
   <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
    <td balign="left">P/N: CAB1</td>
    <td balign="left">CablesCo: ABC123</td>
+   <td balign="left">Cables R Us: 999-888-777</td>
   </tr></table>
  </td></tr>
  <tr><td>
@@ -153,7 +202,9 @@ graph {
    <tr><td>&nbsp;</td></tr>
    <tr>
     <td>X1:1</td>
-    <td>BN</td>
+    <td>
+     1:BN
+    </td>
     <td>X2:1</td>
    </tr>
    <tr>
@@ -167,7 +218,9 @@ graph {
    </tr>
    <tr>
     <td>X1:2</td>
-    <td>RD</td>
+    <td>
+     2:RD
+    </td>
     <td>X2:2</td>
    </tr>
    <tr>
@@ -181,7 +234,9 @@ graph {
    </tr>
    <tr>
     <td>X1:3</td>
-    <td>OG</td>
+    <td>
+     3:OG
+    </td>
     <td>X2:3</td>
    </tr>
    <tr>
@@ -195,7 +250,9 @@ graph {
    </tr>
    <tr>
     <td>X1:4</td>
-    <td>YE</td>
+    <td>
+     4:YE
+    </td>
     <td>X2:4</td>
    </tr>
    <tr>
@@ -211,7 +268,7 @@ graph {
   </table>
  </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style=""]
+> fillcolor="#FFFFFF" shape=box style=filled]
 	edge [color="#000000:#ffff00:#000000"]
 	X1:p1r:e -- W2:w1:w
 	W2:w1:e -- X3:p1l:w
@@ -243,7 +300,9 @@ graph {
    <tr><td>&nbsp;</td></tr>
    <tr>
     <td>X1:1</td>
-    <td>YE</td>
+    <td>
+     YE
+    </td>
     <td>X3:1</td>
    </tr>
    <tr>
@@ -259,11 +318,14 @@ graph {
     <table border="0" cellspacing="0" cellborder="0"><tr>
      <td>P/N: WIRE1</td>
      <td>WiresCo: W1-YE</td>
+     <td>WireShack: 1001</td>
     </tr></table>
    </td></tr>
    <tr>
     <td>X1:2</td>
-    <td>BK</td>
+    <td>
+     BK
+    </td>
     <td>X3:2</td>
    </tr>
    <tr>
@@ -279,11 +341,14 @@ graph {
     <table border="0" cellspacing="0" cellborder="0"><tr>
      <td>P/N: WIRE2</td>
      <td>WiresCo: W1-BK</td>
+     <td>WireShack: 1002</td>
     </tr></table>
    </td></tr>
    <tr>
     <td>X1:3</td>
-    <td>BK</td>
+    <td>
+     BK
+    </td>
     <td>X3:3</td>
    </tr>
    <tr>
@@ -299,11 +364,14 @@ graph {
     <table border="0" cellspacing="0" cellborder="0"><tr>
      <td>P/N: WIRE2</td>
      <td>WiresCo: W1-BK</td>
+     <td>WireShack: 1002</td>
     </tr></table>
    </td></tr>
    <tr>
     <td>X1:4</td>
-    <td>RD</td>
+    <td>
+     RD
+    </td>
     <td>X3:4</td>
    </tr>
    <tr>
@@ -319,11 +387,22 @@ graph {
     <table border="0" cellspacing="0" cellborder="0"><tr>
      <td>P/N: WIRE3</td>
      <td>WiresCo: W1-RD</td>
+     <td>WireShack: 1009</td>
     </tr></table>
    </td></tr>
    <tr><td>&nbsp;</td></tr>
   </table>
  </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td balign="left">Additional components</td>
+  </tr></table>
+ </td></tr>
+ <tr><td>
+  <table border="0" cellspacing="0" cellpadding="3" cellborder="1"><tr>
+   <td align="left" balign="left">1 m x Sleve, Braided nylon, black, 3mm<br/>P/N: SLV-1</td>
+  </tr></table>
+ </td></tr>
 </table>
-> fillcolor=white margin=0 shape=box style="filled,dashed"]
+> fillcolor="#FFFFFF" shape=box style="filled,dashed"]
 }
diff --git a/tutorial/tutorial08.html b/tutorial/tutorial08.html
index 75a5219d..ce4f1aee 100644
--- a/tutorial/tutorial08.html
+++ b/tutorial/tutorial08.html
@@ -1,290 +1,468 @@
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+ <title>tutorial08</title>
+</head><body style="font-family:arial;background-color:#FFFFFF">
+<h1>tutorial08</h1>
+<h2>Diagram</h2>
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+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">5</td>
+  <td style="border:1px solid #000000; padding: 4px">Label, pinout information</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">2</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X2, X3</td>
+  <td style="border:1px solid #000000; padding: 4px">Label-ID-1</td>
+  <td style="border:1px solid #000000; padding: 4px"><a href="https://www.bradyid.com">Brady</a></td>
+  <td style="border:1px solid #000000; padding: 4px"><a href="https://www.bradyid.com/wire-cable-labels/bmp71-bmp61-m611-tls-2200-nylon-cloth-wire-general-id-labels-cps-2958789">B-499</a></td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">6</td>
+  <td style="border:1px solid #000000; padding: 4px">Sleve, Braided nylon, black, 3mm</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W2</td>
+  <td style="border:1px solid #000000; padding: 4px">SLV-1</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">7</td>
+  <td style="border:1px solid #000000; padding: 4px">Test</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">3</td>
+  <td style="border:1px solid #000000; padding: 4px"></td>
+  <td style="border:1px solid #000000; padding: 4px">X1, X2, X3</td>
+  <td style="border:1px solid #000000; padding: 4px">ABC</td>
+  <td style="border:1px solid #000000; padding: 4px">Molex</td>
+  <td style="border:1px solid #000000; padding: 4px">45454</td>
+  <td style="border:1px solid #000000; padding: 4px">Mousikey</td>
+  <td style="border:1px solid #000000; padding: 4px">9999</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">8</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, BK</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">2</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W2</td>
+  <td style="border:1px solid #000000; padding: 4px">WIRE2</td>
+  <td style="border:1px solid #000000; padding: 4px">WiresCo</td>
+  <td style="border:1px solid #000000; padding: 4px">W1-BK</td>
+  <td style="border:1px solid #000000; padding: 4px">WireShack</td>
+  <td style="border:1px solid #000000; padding: 4px">1002</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">9</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, RD</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W2</td>
+  <td style="border:1px solid #000000; padding: 4px">WIRE3</td>
+  <td style="border:1px solid #000000; padding: 4px">WiresCo</td>
+  <td style="border:1px solid #000000; padding: 4px">W1-RD</td>
+  <td style="border:1px solid #000000; padding: 4px">WireShack</td>
+  <td style="border:1px solid #000000; padding: 4px">1009</td>
+ </tr>
+ <tr>
+  <td style="border:1px solid #000000; padding: 4px">10</td>
+  <td style="border:1px solid #000000; padding: 4px">Wire, 0.25 mm&sup2;, YE</td>
+  <td style="border:1px solid #000000; padding: 4px; text-align:right">1</td>
+  <td style="border:1px solid #000000; padding: 4px">m</td>
+  <td style="border:1px solid #000000; padding: 4px">W2</td>
+  <td style="border:1px solid #000000; padding: 4px">WIRE1</td>
+  <td style="border:1px solid #000000; padding: 4px">WiresCo</td>
+  <td style="border:1px solid #000000; padding: 4px">W1-YE</td>
+  <td style="border:1px solid #000000; padding: 4px">WireShack</td>
+  <td style="border:1px solid #000000; padding: 4px">1001</td>
+ </tr>
+</table>
+</body></html>
diff --git a/tutorial/tutorial08.png b/tutorial/tutorial08.png
index e75d27ab..d2b10be4 100644
Binary files a/tutorial/tutorial08.png and b/tutorial/tutorial08.png differ
diff --git a/tutorial/tutorial08.svg b/tutorial/tutorial08.svg
index 9b4546a3..a6125f23 100644
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diff --git a/tutorial/tutorial08.yml b/tutorial/tutorial08.yml
index 2dc55443..1e5e4f20 100644
--- a/tutorial/tutorial08.yml
+++ b/tutorial/tutorial08.yml
@@ -1,3 +1,6 @@
+options:
+  mini_bom_mode: false
+
 connectors:
   X1: &template1 # define a template for later use
     type: Molex KK 254
@@ -5,6 +8,8 @@ connectors:
     subtype: female
     manufacturer: '<a href="https://www.molex.com/">Molex</a>' # set manufacter name
     mpn: '<a href="https://www.molex.com/molex/products/part-detail/crimp_housings/0022013047">22013047</a>' # set manufacturer part number
+    supplier: Digimouse
+    spn: 1234
     # add a list of additional components to a part (shown in graph)
     additional_components:
       -
@@ -13,6 +18,14 @@ connectors:
         qty_multiplier: populated # multipier for quantity (number of populated pins)
         manufacturer: Molex # set manufacter name
         mpn: 08500030 # set manufacturer part number
+      -
+        type: Test
+        qty: 1
+        pn: ABC
+        manufacturer: Molex
+        mpn: 45454
+        supplier: Mousikey
+        spn: 9999
   X2:
     <<: *template1 # reuse template
     pn: CON4 # set an internal part number for just this connector
@@ -27,6 +40,8 @@ cables:
     color_code: IEC
     manufacturer: CablesCo
     mpn: ABC123
+    supplier: Cables R Us
+    spn: 999-888-777
     pn: CAB1
   W2:
     category: bundle
@@ -35,6 +50,8 @@ cables:
     colors: [YE, BK, BK, RD]
     manufacturer: [WiresCo,WiresCo,WiresCo,WiresCo] # set a manufacter per wire
     mpn: [W1-YE,W1-BK,W1-BK,W1-RD]
+    supplier: [WireShack,WireShack,WireShack,WireShack]
+    spn: [1001,1002,1002,1009]
     pn: [WIRE1,WIRE2,WIRE2,WIRE3]
     # add a list of additional components to a part (shown in graph)
     additional_components: