diff --git a/dev/Materials/Reveal/RevealBrush_rs1_themeresources.xaml b/dev/Materials/Reveal/RevealBrush_rs1_themeresources.xaml
index 7e0919da36..d134dc0d00 100644
--- a/dev/Materials/Reveal/RevealBrush_rs1_themeresources.xaml
+++ b/dev/Materials/Reveal/RevealBrush_rs1_themeresources.xaml
@@ -33,6 +33,7 @@
             <!-- Background Brushes -->
             <SolidColorBrush x:Key="SystemControlBackgroundBaseLowRevealBackgroundBrush" Color="{StaticResource SystemBaseLowColor}" />
             <SolidColorBrush x:Key="SystemControlTransparentRevealBackgroundBrush" Color="Transparent" />
+            <SolidColorBrush x:Key="SystemControlBackgroundAltHighRevealBackgroundBrush" Color="{StaticResource SystemAltHighColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccentRevealBackgroundBrush" Color="{ThemeResource SystemAccentColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccent3RevealBackgroundBrush" Color="{ThemeResource SystemAccentColor}" Opacity="0.6" />
             <SolidColorBrush x:Key="SystemControlHighlightAccent2RevealBackgroundBrush" Color="{ThemeResource SystemAccentColor}" Opacity="0.8" />
@@ -87,7 +88,9 @@
             <Thickness x:Key="ComboBoxItemRevealThemePadding">11,5,11,7</Thickness>
             <Thickness x:Key="ComboBoxItemRevealThemeTouchPadding">11,11,11,13</Thickness>
             <Thickness x:Key="ComboBoxItemRevealThemeGameControllerPadding">11,11,11,13</Thickness>
-            
+
+            <StaticResource x:Key="CalendarViewCalendarItemRevealBackground" ResourceKey="SystemControlBackgroundAltHighRevealBackgroundBrush" />
+
             <!-- Resources for Windows.UI.Xaml.Controls.Button -->
             <StaticResource x:Key="ButtonRevealBackground" ResourceKey="SystemControlBackgroundBaseLowRevealBackgroundBrush" />
             <StaticResource x:Key="ButtonRevealBackgroundPointerOver" ResourceKey="SystemControlBackgroundBaseLowRevealBackgroundBrush" />
@@ -234,6 +237,7 @@
             <!-- Background Brushes -->
             <SolidColorBrush x:Key="SystemControlBackgroundBaseLowRevealBackgroundBrush" Color="{StaticResource SystemBaseLowColor}" />
             <SolidColorBrush x:Key="SystemControlTransparentRevealBackgroundBrush" Color="Transparent" />
+            <SolidColorBrush x:Key="SystemControlBackgroundAltHighRevealBackgroundBrush" Color="{ThemeResource SystemColorButtonFaceColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccentRevealBackgroundBrush" Color="{ThemeResource SystemAccentColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccent3RevealBackgroundBrush" Color="{ThemeResource SystemAccentColor}" Opacity="0.6" />
             <SolidColorBrush x:Key="SystemControlHighlightAccent2RevealBackgroundBrush" Color="{ThemeResource SystemAccentColor}" Opacity="0.8" />
@@ -288,7 +292,9 @@
             <Thickness x:Key="ComboBoxItemRevealThemePadding">11,5,11,7</Thickness>
             <Thickness x:Key="ComboBoxItemRevealThemeTouchPadding">11,11,11,13</Thickness>
             <Thickness x:Key="ComboBoxItemRevealThemeGameControllerPadding">11,11,11,13</Thickness>
-            
+
+            <StaticResource x:Key="CalendarViewCalendarItemRevealBackground" ResourceKey="SystemControlBackgroundAltHighRevealBackgroundBrush" />
+
             <!-- Resources for Windows.UI.Xaml.Controls.Button -->
             <StaticResource x:Key="ButtonRevealBackground" ResourceKey="SystemControlBackgroundBaseLowRevealBackgroundBrush" />
             <StaticResource x:Key="ButtonRevealBackgroundPointerOver" ResourceKey="SystemControlBackgroundBaseLowRevealBackgroundBrush" />
@@ -435,6 +441,7 @@
             <!-- Background Brushes -->
             <SolidColorBrush x:Key="SystemControlBackgroundBaseLowRevealBackgroundBrush" Color="{ThemeResource SystemColorButtonFaceColor}" />
             <SolidColorBrush x:Key="SystemControlTransparentRevealBackgroundBrush" Color="Transparent" />
+            <SolidColorBrush x:Key="SystemControlBackgroundAltHighRevealBackgroundBrush" Color="{StaticResource SystemAltHighColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccentRevealBackgroundBrush" Color="{ThemeResource SystemColorHighlightColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccent3RevealBackgroundBrush" Color="{ThemeResource SystemColorHighlightColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccent2RevealBackgroundBrush" Color="{ThemeResource SystemColorHighlightColor}" />
@@ -489,7 +496,9 @@
             <Thickness x:Key="ComboBoxItemRevealThemePadding">11,5,11,7</Thickness>
             <Thickness x:Key="ComboBoxItemRevealThemeTouchPadding">11,11,11,13</Thickness>
             <Thickness x:Key="ComboBoxItemRevealThemeGameControllerPadding">11,11,11,13</Thickness>
-            
+
+            <StaticResource x:Key="CalendarViewCalendarItemRevealBackground" ResourceKey="SystemControlBackgroundAltHighRevealBackgroundBrush" />
+
             <!-- Resources for Windows.UI.Xaml.Controls.Button -->
             <StaticResource x:Key="ButtonRevealBackground" ResourceKey="SystemControlBackgroundBaseLowRevealBackgroundBrush" />
             <StaticResource x:Key="ButtonRevealBackgroundPointerOver" ResourceKey="SystemControlBackgroundBaseLowRevealBackgroundBrush" />
diff --git a/dev/Materials/Reveal/RevealBrush_rs2_themeresources.xaml b/dev/Materials/Reveal/RevealBrush_rs2_themeresources.xaml
index 8fa568e794..847db93a56 100644
--- a/dev/Materials/Reveal/RevealBrush_rs2_themeresources.xaml
+++ b/dev/Materials/Reveal/RevealBrush_rs2_themeresources.xaml
@@ -56,6 +56,11 @@
                 TargetTheme="Dark"
                 Color="Transparent"
                 FallbackColor="Transparent"/>
+            <local:RevealBackgroundBrush
+                x:Key="SystemControlBackgroundAltHighRevealBackgroundBrush"
+                TargetTheme="Dark" 
+                Color="{StaticResource SystemAltHighColor}" 
+                FallbackColor="{StaticResource SystemAltHighColor}" />
             <local:RevealBackgroundBrush
                 x:Key="SystemControlHighlightAccentRevealBackgroundBrush"
                 TargetTheme="Dark"
@@ -400,6 +405,11 @@
                 TargetTheme="Light"
                 Color="Transparent"
                 FallbackColor="Transparent"/>
+            <local:RevealBackgroundBrush
+                x:Key="SystemControlBackgroundAltHighRevealBackgroundBrush"
+                TargetTheme="Light" 
+                Color="{StaticResource SystemAltHighColor}" 
+                FallbackColor="{StaticResource SystemAltHighColor}" />
             <local:RevealBackgroundBrush
                 x:Key="SystemControlHighlightAccentRevealBackgroundBrush"
                 TargetTheme="Light"
@@ -736,6 +746,7 @@
             <!-- Background Brushes -->
             <SolidColorBrush x:Key="SystemControlBackgroundBaseLowRevealBackgroundBrush" Color="{ThemeResource SystemColorButtonFaceColor}" />
             <SolidColorBrush x:Key="SystemControlTransparentRevealBackgroundBrush" Color="Transparent" />
+            <SolidColorBrush x:Key="SystemControlBackgroundAltHighRevealBackgroundBrush" Color="{ThemeResource SystemColorButtonFaceColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccentRevealBackgroundBrush" Color="{ThemeResource SystemColorHighlightColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccent3RevealBackgroundBrush" Color="{ThemeResource SystemColorHighlightColor}" />
             <SolidColorBrush x:Key="SystemControlHighlightAccent2RevealBackgroundBrush" Color="{ThemeResource SystemColorHighlightColor}" />