diff --git a/CHANGELOG.md b/CHANGELOG.md
index 965d29c..c917e12 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+### 0.10.4
+
+- Fixed an issue preventing the selected colour scheme from being applied
+
 ### 0.10.1
 
 - Fix broken asset path
diff --git a/package.json b/package.json
index 1058944..3f8abba 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
 	"name": "vscode-print",
 	"displayName": "Print",
 	"description": "Rendered Markdown, coloured code.",
-	"version": "0.10.1",
+	"version": "0.10.4",
 	"icon": "assets/vscode-print-128.png",
 	"author": {
 		"name": "Peter Wone",
diff --git a/src/extension.ts b/src/extension.ts
index 45a7c06..674c2ba 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -25,10 +25,10 @@ localize("FILE_LIST_DISABLED", "x");
 
 let server: http.Server | undefined;
 const testFlags = new Set<string>();
-let colourScheme = vscode.workspace.getConfiguration("print", null).colourScheme;
-if (captionByFilename[colourScheme]) {
+if (captionByFilename[vscode.workspace.getConfiguration("print").colourScheme]) {
 	// legacy value, convert
-	vscode.workspace.getConfiguration("print", null).update("colourScheme", captionByFilename[colourScheme]);
+	let cbf = captionByFilename[vscode.workspace.getConfiguration("print").colourScheme];
+	vscode.workspace.getConfiguration("print").update("colourScheme", cbf);
 }
 const printSessions = new Map<string, PrintSession>();
 let _gc: NodeJS.Timer;
diff --git a/src/print-session.ts b/src/print-session.ts
index 5ed828e..0305044 100644
--- a/src/print-session.ts
+++ b/src/print-session.ts
@@ -12,8 +12,6 @@ import { defaultCss, filenameByCaption } from "./imports";
 const defaultMarkdownCss: string = require("./css/default-markdown.css").default.toString();
 const lineNumbersCss: string = require("./css/line-numbers.css").default.toString();
 let settingsCss: string = require("./css/settings.css").default.toString();
-const colourSchemeName: string = filenameByCaption[vscode.workspace.getConfiguration("print", null).colourScheme];
-const colourSchemeCss: string = require(`highlight.js/styles/${colourSchemeName}.css`).default.toString();
 const browserLaunchMap: any = { darwin: "open", linux: "xdg-open", win32: "start" };
 
 export class PrintSession {
@@ -146,9 +144,14 @@ export class PrintSession {
 			logger.debug(`Responding to vsc-print.resource request for ${urlParts[3]} in session ${urlParts[1]}`);
 			switch (urlParts[3]) {
 				case "colour-scheme.css":
+					let colourScheme = vscode.workspace.getConfiguration("print").colourScheme;
+					let colourSchemeName: string = filenameByCaption[colourScheme];
+					logger.debug(`Loading colour scheme from ${colourSchemeName}`);
+					let colourSchemeCss: string = require(`highlight.js/styles/${colourSchemeName}.css`).default.toString();
 					response.writeHead(200, {
 						"Content-Type": "text/css; charset=utf-8",
-						"Content-Length": colourSchemeCss.length
+						"Content-Length": colourSchemeCss.length,
+						'Cache-Control': 'no-cache'
 					});
 					response.end(colourSchemeCss);
 					break;
diff --git a/src/test/test-docs/some.cs b/src/test/test-docs/some.cs
new file mode 100644
index 0000000..2999a5b
--- /dev/null
+++ b/src/test/test-docs/some.cs
@@ -0,0 +1,17 @@
+using System.IO.Compression;
+
+#pragma warning disable 414, 3021
+
+namespace MyApplication
+{
+    [Obsolete("...")]
+    class Program : IInterface
+    {
+        public static List<int> JustDoIt(int count)
+        {
+            Span<int> numbers = stackalloc int[length];
+            Console.WriteLine($"Hello {Name}!");
+            return new List<int>(new int[] { 1, 2, 3 })
+        }
+    }
+}
\ No newline at end of file