Fix all compile-time errors

src/Riverside.Toolkit/Controls/Toolkit/IAlphaMaskProvider.cs

@@ -1,7 +1,7 @@
 namespace Riverside.Toolkit.Controls.Toolkit
 {
     /// <summary>
-    /// Any user control can implement this interface to provide a custom alpha mask to it's parent DropShadowPanel
+    /// Any user control can implement this interface to provide a custom alpha mask to it's parent <see cref="UserControls.DropShadowPanel"/>
     /// </summary>
     public interface IAlphaMaskProvider
     {

src/Riverside.Toolkit/Riverside.Toolkit.csproj

@@ -5,6 +5,36 @@
 		<UseRidGraph>true</UseRidGraph>
 	</PropertyGroup>
 	<Import Project="..\..\eng\alloy\src\Riverside.Alloy\Riverside.Alloy.props" />
+
+	<!-- Themes and XBF compilation issue temporary fixes -->
+	<ItemGroup Condition=" '$(Alloy)' == 'UWP' ">
+		<!-- Removes the Generic.xaml during UWP build as the TitleBarEx control is not available on that platform -->
+		<Page Remove="Themes\Generic.xaml" />
+		<Resource Remove="Themes\Generic.xaml" />
+
+		<!-- Removes the UserControls folder during UWP build as the removal of Generic.xaml causes issues with these -->
+		<Compile Remove="UserControls\**" />
+		<EmbeddedResource Remove="UserControls\**" />
+		<None Remove="UserControls\**" />
+		<Page Remove="UserControls\**" />
+		<PRIResource Remove="UserControls\**" />
+		<Resource Remove="UserControls\GroupBox.xaml" />
+		<Resource Remove="UserControls\ImageFrame.xaml" />
+		<Resource Remove="UserControls\Buttons\TileButton.xaml" />
+		<Resource Remove="UserControls\DropShadowPanel.xaml" />
+	</ItemGroup>
+	<ItemGroup Condition=" '$(Alloy)' == 'WinUI' ">
+		<Folder Include="Themes\" />
+		<Resource Include="Themes\Generic.xaml" />
+
+		<EmbeddedResource Include="UserControls\**" />
+		<None Include="UserControls\**" />
+		<PRIResource Include="UserControls\**" />
+		<Resource Include="UserControls\GroupBox.xaml" />
+		<Resource Include="UserControls\ImageFrame.xaml" />
+		<Resource Include="UserControls\Buttons\TileButton.xaml" />
+		<Resource Include="UserControls\DropShadowPanel.xaml" />
+	</ItemGroup>
 
 	<!-- Dependencies -->
 	<ItemGroup>
@@ -30,7 +60,7 @@
 		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
 	</PropertyGroup>
 	<PropertyGroup Condition=" '$(Alloy)' == 'UWP' ">
-		<!-- Explicitly specify the UWP property since it can *sometimes* cause errors saying it is not even though it is-->
+		<!-- Explicitly specify the UWP property since it can *sometimes* cause errors saying it is not even though it is -->
 		<UseUwp>True</UseUwp>
 	</PropertyGroup>
 </Project>

src/Riverside.Toolkit/Controls/Toolkit/DropShadowPanel.Properties.cs → src/Riverside.Toolkit/UserControls/DropShadowPanel.Properties.cs

@@ -1,6 +1,7 @@
 using Windows.UI;
+using Riverside.Toolkit.Controls.Toolkit;
 
-namespace Riverside.Toolkit.Controls.Toolkit
+namespace Riverside.Toolkit.UserControls
 {
     /// <summary>
     /// The <see cref="DropShadowPanel"/> control allows the creation of a DropShadow for any Xaml FrameworkElement in markup

src/Riverside.Toolkit/UserControls/DropShadowPanel.xaml

@@ -0,0 +1,31 @@
+<ResourceDictionary
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:controls="using:Riverside.Toolkit.UserControls">
+
+    <Style TargetType="controls:DropShadowPanel">
+        <Setter Property="IsTabStop" Value="False" />
+        <Setter Property="HorizontalAlignment" Value="Stretch" />
+        <Setter Property="HorizontalContentAlignment" Value="Left" />
+        <Setter Property="VerticalAlignment" Value="Stretch" />
+        <Setter Property="VerticalContentAlignment" Value="Stretch" />
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="controls:DropShadowPanel">
+                    <Grid
+                        HorizontalAlignment="{TemplateBinding HorizontalAlignment}"
+                        VerticalAlignment="{TemplateBinding VerticalAlignment}"
+                        Background="{TemplateBinding Background}"
+                        BorderBrush="{TemplateBinding BorderBrush}"
+                        BorderThickness="{TemplateBinding BorderThickness}">
+                        <Border
+                            x:Name="ShadowElement"
+                            HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
+                            VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
+                        <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
+                    </Grid>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+</ResourceDictionary>

src/Riverside.Toolkit/Controls/Toolkit/DropShadowPanel.xaml.cs → src/Riverside.Toolkit/UserControls/DropShadowPanel.xaml.cs

@@ -1,9 +1,10 @@
 using System.Numerics;
 using Windows.UI;
+using Riverside.Toolkit.Controls.Toolkit;
 
 // The User Control item template is documented at https://go.microsoft.com/fwlink/?LinkId=234236
 
-namespace Riverside.Toolkit.Controls.Toolkit;
+namespace Riverside.Toolkit.UserControls;
 
 /// <summary>
 /// The <see cref="DropShadowPanel"/> control allows the creation of a DropShadow for any Xaml FrameworkElement in markup