From b848a401f8a3bd62671eb9cfec6463e04f1ef25f Mon Sep 17 00:00:00 2001
From: Matt Nadareski <mnadareski@outlook.com>
Date: Thu, 23 Nov 2023 01:19:17 -0500
Subject: [PATCH] Get UI building with Framework 4.0

---
 CHANGELIST.md   |   1 +
 MPF/App.xaml    |  54 +-----------
 MPF/App.xaml.cs | 218 +++++++++++++++++++++++++++++++++++++++++++++++-
 MPF/MPF.csproj  |  52 +++++++++++-
 4 files changed, 268 insertions(+), 57 deletions(-)

diff --git a/CHANGELIST.md b/CHANGELIST.md
index dfde09a8..6aae6e28 100644
--- a/CHANGELIST.md
+++ b/CHANGELIST.md
@@ -34,6 +34,7 @@
 - Update compatibility libraries
 - Support .NET Framework 2.0
 - Support .NET Framework 3.5 in UI.Core
+- Get UI building with Framework 4.0
 
 ### 3.0.0 (2023-11-14)
 
diff --git a/MPF/App.xaml b/MPF/App.xaml
index d177bb81..90e9f1f3 100644
--- a/MPF/App.xaml
+++ b/MPF/App.xaml
@@ -211,42 +211,17 @@
                     <ColumnDefinition Width="*"/>
                     <ColumnDefinition MinWidth="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}" Width="0"/>
                 </Grid.ColumnDefinitions>
-                <Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
-                    <Themes:SystemDropShadowChrome x:Name="shadow" Color="Transparent" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}">
-                        <Border x:Name="dropDownBorder" BorderBrush="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}" BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.WindowBrushKey}}">
-                            <ScrollViewer x:Name="DropDownScrollViewer">
-                                <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                                    <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
-                                        <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
-                                    </Canvas>
-                                    <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                                </Grid>
-                            </ScrollViewer>
-                        </Border>
-                    </Themes:SystemDropShadowChrome>
-                </Popup>
+                <Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Margin="1" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom" />
                 <ToggleButton x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{DynamicResource ComboBoxToggleButton}"/>
                 <ContentPresenter x:Name="contentPresenter" ContentTemplate="{TemplateBinding SelectionBoxItemTemplate}" ContentTemplateSelector="{TemplateBinding ItemTemplateSelector}" Content="{TemplateBinding SelectionBoxItem}" ContentStringFormat="{TemplateBinding SelectionBoxItemStringFormat}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsHitTestVisible="false" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
             </Grid>
             <ControlTemplate.Triggers>
-                <Trigger Property="HasDropShadow" SourceName="PART_Popup" Value="true">
-                    <Setter Property="Margin" TargetName="shadow" Value="0,0,5,5"/>
-                    <Setter Property="Color" TargetName="shadow" Value="#71000000"/>
-                </Trigger>
-                <Trigger Property="HasItems" Value="false">
-                    <Setter Property="Height" TargetName="dropDownBorder" Value="95"/>
-                </Trigger>
                 <MultiTrigger>
                     <MultiTrigger.Conditions>
                         <Condition Property="IsGrouping" Value="true"/>
-                        <Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping" Value="false"/>
                     </MultiTrigger.Conditions>
                     <Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
                 </MultiTrigger>
-                <Trigger Property="ScrollViewer.CanContentScroll" SourceName="DropDownScrollViewer" Value="false">
-                    <Setter Property="Canvas.Top" TargetName="opaqueRect" Value="{Binding VerticalOffset, ElementName=DropDownScrollViewer}"/>
-                    <Setter Property="Canvas.Left" TargetName="opaqueRect" Value="{Binding HorizontalOffset, ElementName=DropDownScrollViewer}"/>
-                </Trigger>
             </ControlTemplate.Triggers>
         </ControlTemplate>
         <SolidColorBrush x:Key="TextBox.Static.Background" Color="#FFFFFFFF"/>
@@ -272,20 +247,7 @@
                     <ColumnDefinition Width="*"/>
                     <ColumnDefinition MinWidth="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}" Width="0"/>
                 </Grid.ColumnDefinitions>
-                <Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom">
-                    <Themes:SystemDropShadowChrome x:Name="shadow" Color="Transparent" MaxHeight="{TemplateBinding MaxDropDownHeight}" MinWidth="{Binding ActualWidth, ElementName=templateRoot}">
-                        <Border x:Name="dropDownBorder" BorderBrush="{DynamicResource {x:Static SystemColors.WindowFrameBrushKey}}" BorderThickness="1" Background="{DynamicResource {x:Static SystemColors.WindowBrushKey}}">
-                            <ScrollViewer x:Name="DropDownScrollViewer">
-                                <Grid x:Name="grid" RenderOptions.ClearTypeHint="Enabled">
-                                    <Canvas x:Name="canvas" HorizontalAlignment="Left" Height="0" VerticalAlignment="Top" Width="0">
-                                        <Rectangle x:Name="opaqueRect" Fill="{Binding Background, ElementName=dropDownBorder}" Height="{Binding ActualHeight, ElementName=dropDownBorder}" Width="{Binding ActualWidth, ElementName=dropDownBorder}"/>
-                                    </Canvas>
-                                    <ItemsPresenter x:Name="ItemsPresenter" KeyboardNavigation.DirectionalNavigation="Contained" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
-                                </Grid>
-                            </ScrollViewer>
-                        </Border>
-                    </Themes:SystemDropShadowChrome>
-                </Popup>
+                <Popup x:Name="PART_Popup" AllowsTransparency="true" Grid.ColumnSpan="2" IsOpen="{Binding IsDropDownOpen, RelativeSource={RelativeSource TemplatedParent}}" PopupAnimation="{DynamicResource {x:Static SystemParameters.ComboBoxPopupAnimationKey}}" Placement="Bottom" />
                 <ToggleButton x:Name="toggleButton" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" IsChecked="{Binding IsDropDownOpen, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Style="{DynamicResource ComboBoxToggleButton}"/>
                 <Border x:Name="border" Background="{DynamicResource TextBox.Static.Background}" Margin="{TemplateBinding BorderThickness}">
                     <TextBox x:Name="PART_EditableTextBox" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" IsReadOnly="{Binding IsReadOnly, RelativeSource={RelativeSource TemplatedParent}}" Margin="{TemplateBinding Padding}" Style="{DynamicResource ComboBoxEditableTextBox}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
@@ -298,24 +260,12 @@
                 <Trigger Property="IsKeyboardFocusWithin" Value="true">
                     <Setter Property="Foreground" Value="Black"/>
                 </Trigger>
-                <Trigger Property="HasDropShadow" SourceName="PART_Popup" Value="true">
-                    <Setter Property="Margin" TargetName="shadow" Value="0,0,5,5"/>
-                    <Setter Property="Color" TargetName="shadow" Value="#71000000"/>
-                </Trigger>
-                <Trigger Property="HasItems" Value="false">
-                    <Setter Property="Height" TargetName="dropDownBorder" Value="95"/>
-                </Trigger>
                 <MultiTrigger>
                     <MultiTrigger.Conditions>
                         <Condition Property="IsGrouping" Value="true"/>
-                        <Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping" Value="false"/>
                     </MultiTrigger.Conditions>
                     <Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
                 </MultiTrigger>
-                <Trigger Property="ScrollViewer.CanContentScroll" SourceName="DropDownScrollViewer" Value="false">
-                    <Setter Property="Canvas.Top" TargetName="opaqueRect" Value="{Binding VerticalOffset, ElementName=DropDownScrollViewer}"/>
-                    <Setter Property="Canvas.Left" TargetName="opaqueRect" Value="{Binding HorizontalOffset, ElementName=DropDownScrollViewer}"/>
-                </Trigger>
             </ControlTemplate.Triggers>
         </ControlTemplate>
         <Style x:Key="CustomComboBoxStyle" TargetType="{x:Type ComboBox}">
diff --git a/MPF/App.xaml.cs b/MPF/App.xaml.cs
index 6f64ef8a..9ac6e197 100644
--- a/MPF/App.xaml.cs
+++ b/MPF/App.xaml.cs
@@ -1,7 +1,221 @@
-namespace MPF
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
+using System.Windows.Data;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Shapes;
+using Microsoft.Windows.Themes;
+
+namespace MPF
 {
     /// <summary>
     /// Interaction logic for App.xaml
     /// </summary>
-    public partial class App : System.Windows.Application { }
+    public partial class App : Application
+    {
+
+#if NET40_OR_GREATER || NETCOREAPP
+        public App()
+        {
+            InitializeComponent();
+
+            AddDropShadowChrome("ComboBoxTemplate");
+            AddDropShadowChrome("ComboBoxEditableTemplate");
+
+#if NET452_OR_GREATER || NETCOREAPP
+            AddVirtualizingCondition("ComboBoxTemplate");
+            AddVirtualizingCondition("ComboBoxEditableTemplate");
+#endif
+        }
+
+        private void AddDropShadowChrome(string resourceName)
+        {
+            // Get the template resource
+            if (Resources[resourceName] is not ControlTemplate controlTemplate)
+                return;
+
+            // Get the popup
+            if (controlTemplate.Resources["PART_Popup"] is not Popup popup)
+                return;
+
+            // Create the various nested items
+            var chrome = new SystemDropShadowChrome
+            {
+                Name = "shadow",
+                Color = Colors.Transparent,
+            };
+            var border = new Border
+            {
+                Name = "dropDownBorder",
+                BorderThickness = new Thickness(1),
+            };
+            var scrollViewer = new ScrollViewer { Name = "DropDownScrollViewer" };
+            var grid = new Grid { Name = "grid" };
+            RenderOptions.SetClearTypeHint(grid, ClearTypeHint.Enabled);
+            var canvas = new Canvas
+            {
+                Name = "canvas",
+                HorizontalAlignment = HorizontalAlignment.Left,
+                Height = 0,
+                VerticalAlignment = VerticalAlignment.Top,
+                Width = 0,
+            };
+            var rectangle = new Rectangle { Name = "opaqueRect" };
+            var itemsPresenter = new ItemsPresenter { Name = "ItemsPresenter" };
+            KeyboardNavigation.SetDirectionalNavigation(itemsPresenter, KeyboardNavigationMode.Contained);
+
+            // Set the bindings
+            BindingOperations.SetBinding(chrome, SystemDropShadowChrome.MaxHeightProperty, new Binding
+            {
+                Source = new TemplateBindingExtension(ComboBox.MaxDropDownHeightProperty),
+            });
+            BindingOperations.SetBinding(chrome, SystemDropShadowChrome.MinWidthProperty, new Binding
+            {
+                Source = ComboBox.ActualWidthProperty,
+                ElementName = "templateRoot",
+            });
+
+            BindingOperations.SetBinding(border, Border.BorderBrushProperty, new Binding
+            {
+                Source = new DynamicResourceExtension(new StaticResourceExtension(SystemColors.WindowFrameBrushKey)),
+            });
+            BindingOperations.SetBinding(border, Border.BackgroundProperty, new Binding
+            {
+                Source = new DynamicResourceExtension(new StaticResourceExtension(SystemColors.WindowBrushKey)),
+            });
+
+            BindingOperations.SetBinding(rectangle, Rectangle.FillProperty, new Binding
+            {
+                Source = Border.BackgroundProperty,
+                ElementName = "dropDownBorder",
+            });
+            BindingOperations.SetBinding(rectangle, Rectangle.HeightProperty, new Binding
+            {
+                Source = Border.ActualHeightProperty,
+                ElementName = "dropDownBorder",
+            });
+            BindingOperations.SetBinding(rectangle, Rectangle.WidthProperty, new Binding
+            {
+                Source = Border.ActualWidthProperty,
+                ElementName = "dropDownBorder",
+            });
+
+            BindingOperations.SetBinding(itemsPresenter, ItemsPresenter.SnapsToDevicePixelsProperty, new Binding
+            {
+                Source = new TemplateBindingExtension(ComboBox.SnapsToDevicePixelsProperty),
+            });
+
+            // Build the item tree
+            canvas.Children.Add(rectangle);
+            grid.Children.Add(canvas);
+            grid.Children.Add(itemsPresenter);
+            scrollViewer.Content = grid;
+            border.Child = scrollViewer;
+            chrome.Child = border;
+
+            // Add the tree to the popup
+            popup.Child = chrome;
+
+            // Get the triggers
+            var triggers = controlTemplate.Triggers;
+            if (triggers == null)
+                return;
+
+            // Create the new triggers
+            var hasDropShadow = new Trigger
+            {
+                Property = Popup.HasDropShadowProperty,
+                SourceName = "PART_Popup",
+                Value = "true",
+            };
+            var hasItems = new Trigger
+            {
+                Property = ComboBox.HasItemsProperty,
+                Value = "false",
+            };
+            var canContentScroll = new Trigger
+            {
+                Property = ScrollViewer.CanContentScrollProperty,
+                SourceName = "DropDownScrollViewer",
+                Value = "false",
+            };
+
+            // Create and add the setters
+            hasDropShadow.Setters.Add(new Setter
+            {
+                Property = SystemDropShadowChrome.MarginProperty,
+                TargetName = "shadow",
+                Value = "0,0,5,5",
+            });
+            hasDropShadow.Setters.Add(new Setter
+            {
+                Property = SystemDropShadowChrome.ColorProperty,
+                TargetName = "shadow",
+                Value = "#71000000",
+            });
+
+            hasItems.Setters.Add(new Setter
+            {
+                Property = Border.HeightProperty,
+                TargetName = "dropDownBorder",
+                Value = "95",
+            });
+
+            canContentScroll.Setters.Add(new Setter
+            {
+                Property = Canvas.TopProperty,
+                TargetName = "opaqueRect",
+                Value = new Binding
+                {
+                    Source = ScrollViewer.VerticalOffsetProperty,
+                    ElementName = "DropDownScrollViewer",
+                },
+            });
+            canContentScroll.Setters.Add(new Setter
+            {
+                Property = Canvas.LeftProperty,
+                TargetName = "opaqueRect",
+                Value = new Binding
+                {
+                    Source = ScrollViewer.HorizontalOffsetProperty,
+                    ElementName = "DropDownScrollViewer",
+                },
+            });
+
+            // Add the new triggers
+            triggers.Add(hasDropShadow);
+            triggers.Add(hasItems);
+            triggers.Add(canContentScroll);
+        }
+
+#if NET452_OR_GREATER || NETCOREAPP
+        private void AddVirtualizingCondition(string resourceName)
+        {
+            // Get the template resource
+            if (Resources[resourceName] is not ControlTemplate controlTemplate)
+                return;
+
+            // Get the triggers
+            var triggers = controlTemplate.Triggers;
+            if (triggers == null)
+                return;
+
+            // Get the multitrigger
+            if (triggers.FirstOrDefault(t => t is MultiTrigger) is not MultiTrigger multiTrigger)
+                return;
+
+            // Set the virtualizing condition
+            var condition = new Condition
+            {
+                Property = VirtualizingPanel.IsVirtualizingWhenGroupingProperty,
+                Value = "false",
+            };
+            multiTrigger.Conditions.Add(condition);
+        }
+#endif
+
+#endif
+    }
 }
diff --git a/MPF/MPF.csproj b/MPF/MPF.csproj
index 20b99ecc..d5006563 100644
--- a/MPF/MPF.csproj
+++ b/MPF/MPF.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <!-- Assembly Properties -->
-    <TargetFrameworks>net452;net462;net472;net48;netcoreapp3.1;net5.0-windows;net6.0-windows;net7.0-windows;net8.0-windows</TargetFrameworks>
+    <TargetFrameworks>net40;net452;net462;net472;net48;netcoreapp3.1;net5.0-windows;net6.0-windows;net7.0-windows;net8.0-windows</TargetFrameworks>
     <RuntimeIdentifiers>win-x86;win-x64</RuntimeIdentifiers>
     <OutputType>WinExe</OutputType>
     <ApplicationIcon>Images\Icon.ico</ApplicationIcon>
@@ -24,6 +24,16 @@
     <RepositoryType>git</RepositoryType>
   </PropertyGroup>
 
+  <!-- Special handling for Aero2 on non-Framework .NET -->
+  <PropertyGroup Condition="$(TargetFramework.StartsWith(`netcoreapp`)) OR $(TargetFramework.StartsWith(`net5`)) OR $(TargetFramework.StartsWith(`net6`)) OR $(TargetFramework.StartsWith(`net7`)) OR $(TargetFramework.StartsWith(`net8`))">
+    <ReferenceWpfAeroTheme>false</ReferenceWpfAeroTheme>
+    <ReferenceWpfAero2Theme>true</ReferenceWpfAero2Theme>
+    <ReferenceWpfAeroLiteTheme>false</ReferenceWpfAeroLiteTheme>
+    <ReferenceWpfClassicTheme>false</ReferenceWpfClassicTheme>
+    <ReferenceWpfLunaTheme>false</ReferenceWpfLunaTheme>
+    <ReferenceWpfRoyaleTheme>false</ReferenceWpfRoyaleTheme>
+  </PropertyGroup>
+
   <ItemGroup>
     <InternalsVisibleTo Include="MPF.Test" />
   </ItemGroup>
@@ -37,9 +47,12 @@
     <ProjectReference Include="..\MPF.UI.Core\MPF.UI.Core.csproj" />
   </ItemGroup>
 
-  <ItemGroup Condition="$(TargetFramework.StartsWith(`net4`))">
+  <ItemGroup Condition="$(TargetFramework.StartsWith(`net2`)) OR $(TargetFramework.StartsWith(`net3`)) OR $(TargetFramework.StartsWith(`net4`))">
     <Reference Include="PresentationFramework.Aero" />
   </ItemGroup>
+  <ItemGroup Condition="$(TargetFramework.StartsWith(`netcoreapp`)) OR $(TargetFramework.StartsWith(`net5`)) OR $(TargetFramework.StartsWith(`net6`)) OR $(TargetFramework.StartsWith(`net7`)) OR $(TargetFramework.StartsWith(`net8`))">
+    <Reference Include="PresentationFramework.Aero2" />
+  </ItemGroup>
 
   <ItemGroup>
     <PackageReference Include="BinaryObjectScanner" PrivateAssets="build; analyzers" ExcludeAssets="contentFiles" Version="3.0.2" GeneratePathProperty="true">
@@ -52,4 +65,37 @@
     <Content Include="$(PkgBinaryObjectScanner)\content\**" PackagePath="contentFiles\any\any;content" CopyToOutputDirectory="Always" PackageCopyToOutput="true" />
   </ItemGroup>
 
-</Project>
\ No newline at end of file
+  <!-- Special handling for Aero2 on non-Framework .NET -->
+  <Target Name="SelectWpfThemeAssembly" AfterTargets="ResolveAssemblyReferences" Condition="'$(ReferenceWpfAeroTheme)' == 'true'     Or&#xD;&#xA;                     '$(ReferenceWpfAero2Theme)' == 'true'    Or&#xD;&#xA;                     '$(ReferenceWpfAeroLiteTheme)' == 'true' Or&#xD;&#xA;                     '$(ReferenceWpfClassicTheme)' == 'true'  Or &#xD;&#xA;                     '$(ReferenceWpfLunaTheme)' == 'true'     Or&#xD;&#xA;                     '$(ReferenceWpfRoyaleTheme)' == 'true'">
+    <ItemGroup  Condition="$(TargetFramework.StartsWith(`netcoreapp`)) OR $(TargetFramework.StartsWith(`net5`)) OR $(TargetFramework.StartsWith(`net6`)) OR $(TargetFramework.StartsWith(`net7`)) OR $(TargetFramework.StartsWith(`net8`))">
+      <_WpfThemeAssemblies Include="@(ReferencePath)" Condition="'%(ReferencePath.NuGetPackageId)'=='Microsoft.WindowsDesktop.App.Ref'  And &#xD;&#xA;                                   '%(ReferencePath.FileName)'=='PresentationFramework.Aero'">
+        <Aliases Condition="'$(WpfAeroThemeAliases)'!=''">$(WpfAeroThemeAliases)</Aliases>
+      </_WpfThemeAssemblies>
+
+      <_WpfThemeAssemblies Include="@(ReferencePath)" Condition="'%(ReferencePath.NuGetPackageId)'=='Microsoft.WindowsDesktop.App.Ref'  And &#xD;&#xA;                                   '%(ReferencePath.FileName)'=='PresentationFramework.Aero2'">
+        <Aliases Condition="'$(WpfAero2ThemeAliases)'!=''">$(WpfAero2ThemeAliases)</Aliases>
+      </_WpfThemeAssemblies>
+
+      <_WpfThemeAssemblies Include="@(ReferencePath)" Condition="'%(ReferencePath.NuGetPackageId)'=='Microsoft.WindowsDesktop.App.Ref'  And &#xD;&#xA;                                   '%(ReferencePath.FileName)'=='PresentationFramework.AeroLite'">
+        <Aliases Condition="'$(WpfAeroLiteThemeAliases)'!=''">$(WpfAeroLiteThemeAliases)</Aliases>
+      </_WpfThemeAssemblies>
+
+      <_WpfThemeAssemblies Include="@(ReferencePath)" Condition="'%(ReferencePath.NuGetPackageId)'=='Microsoft.WindowsDesktop.App.Ref'  And &#xD;&#xA;                                   '%(ReferencePath.FileName)'=='PresentationFramework.Classic'">
+        <Aliases Condition="'$(WpfClassicThemeAliases)'!=''">$(WpfClassicThemeAliases)</Aliases>
+      </_WpfThemeAssemblies>
+
+      <_WpfThemeAssemblies Include="@(ReferencePath)" Condition="'%(ReferencePath.NuGetPackageId)'=='Microsoft.WindowsDesktop.App.Ref'  And &#xD;&#xA;                                   '%(ReferencePath.FileName)'=='PresentationFramework.Luna'">
+        <Aliases Condition="'$(WpfLunaThemeAliases)'!=''">$(WpfLunaThemeAliases)</Aliases>
+      </_WpfThemeAssemblies>
+
+      <_WpfThemeAssemblies Include="@(ReferencePath)" Condition="'%(ReferencePath.NuGetPackageId)'=='Microsoft.WindowsDesktop.App.Ref'  And &#xD;&#xA;                                   '%(ReferencePath.FileName)'=='PresentationFramework.Royale'">
+        <Aliases Condition="'$(WpfRoyaleThemeAliases)'!=''">$(WpfRoyaleThemeAliases)</Aliases>
+      </_WpfThemeAssemblies>
+
+      <ReferencePath Remove="@(_WpfThemeAssemblies)" />
+      <ReferencePath Include="@(_WpfThemeAssemblies)" Condition="('%(_WpfThemeAssemblies.FileName)'=='PresentationFramework.Aero' And '$(ReferenceWpfAeroTheme)'=='true')          Or &#xD;&#xA;                                ('%(_WpfThemeAssemblies.FileName)'=='PresentationFramework.Aero2' And '$(ReferenceWpfAero2Theme)'=='true')        Or &#xD;&#xA;                                ('%(_WpfThemeAssemblies.FileName)'=='PresentationFramework.AeroLite' And '$(ReferenceWpfAeroLiteTheme)'=='true')  Or &#xD;&#xA;                                ('%(_WpfThemeAssemblies.FileName)'=='PresentationFramework.Classic' And '$(ReferenceWpfClassicTheme)'=='true')    Or &#xD;&#xA;                                ('%(_WpfThemeAssemblies.FileName)'=='PresentationFramework.Luna' And '$(ReferenceWpfLunaTheme)'=='true')          Or&#xD;&#xA;                                ('%(_WpfThemeAssemblies.FileName)'=='PresentationFramework.Royale' And '$(ReferenceWpfRoyaleTheme)'=='true')" />
+    </ItemGroup>
+  </Target>
+
+
+</Project>        
\ No newline at end of file