wire it back up\

src/cascadia/TerminalApp/MarkdownPaneContent.cpp

@@ -278,9 +278,9 @@ namespace winrt::TerminalApp::implementation
     {
         InitializeComponent();
 
-        auto res = Windows::UI::Xaml::Application::Current().Resources();
-        auto bg = res.Lookup(winrt::box_value(L"UnfocusedBorderBrush"));
-        Background(bg.try_as<WUX::Media::Brush>());
+        // auto bg = Resources().Lookup(winrt::box_value(L"PageBackground"));
+        // auto brush = bg.try_as<WUX::Media::Brush>();
+        // Background(brush);
 
         FilePathInput().Text(initialPath);
         _filePath = FilePathInput().Text();

src/cascadia/TerminalApp/MarkdownPaneContent.xaml

@@ -11,9 +11,32 @@
              xmlns:mux="using:Microsoft.UI.Xaml.Controls"
              mc:Ignorable="d">
 
-    <UserControl.Resources />
+    <UserControl.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.ThemeDictionaries>
+                <!--  same as in MainPage, this is SolidBackgroundFillColorTertiary  -->
+                <ResourceDictionary x:Key="Dark">
+                    <Color x:Key="PageBackground">#282828</Color>
+                    <Color x:Key="PlayButtonHoveredColor">#90ef90</Color>
+                    <Color x:Key="PlayButtonNormalColor">#8888</Color>
+                </ResourceDictionary>
+                <ResourceDictionary x:Key="Light">
+                    <Color x:Key="PageBackground">#F9F9F9</Color>
+                    <Color x:Key="PlayButtonHoveredColor">#257f01</Color>
+                    <Color x:Key="PlayButtonNormalColor">#88222222</Color>
+                </ResourceDictionary>
+                <ResourceDictionary x:Key="HighContrast">
+                    <!--  Define resources for HighContrast mode here  -->
+                    <StaticResource x:Key="PageBackground"
+                                    ResourceKey="SystemColorWindowColorBrush" />
+                </ResourceDictionary>
 
-    <Grid x:Name="Root">
+            </ResourceDictionary.ThemeDictionaries>
+        </ResourceDictionary>
+    </UserControl.Resources>
+
+    <Grid x:Name="Root"
+          Background="{ThemeResource PageBackground}">
         <Grid.RowDefinitions>
             <RowDefinition Height="Auto" />
             <RowDefinition Height="*" />

src/cascadia/TerminalApp/TerminalTab.cpp

@@ -1235,6 +1235,10 @@ namespace winrt::TerminalApp::implementation
                 {
                     taskPane.SetLastActiveControl(termControl);
                 }
+                else if (const auto& taskPane{ p->GetContent().try_as<MarkdownPaneContent>() })
+                {
+                    taskPane.SetLastActiveControl(termControl);
+                }
             });
         }
     }