Composite Application Library in WPF Application

<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
   

    <Style x:Key="{x:Type Menu}" TargetType="{x:Type Menu}">
        <Setter Property="SnapsToDevicePixels" Value="True"/>
        <Setter Property="Background" Value="{DynamicResource MenuBackgroundBrush}" />
        <Setter Property="Padding" Value="4,0,0,0" />
    </Style>
    
    <DropShadowBitmapEffect x:Key="ShowDrop" Color="#71000000" Direction="320" ShadowDepth="5" Softness="0.2" Opacity="0.4" />
    <Geometry x:Key="Checkmark">M 0,5.1 L 1.7,5.2 L 3.4,7.1 L 8,0.4 L 9.2,0 L 3.3,10.8 Z</Geometry>

    <ControlTemplate x:Key="{ComponentResourceKey ResourceId=SubmenuContent, TypeInTargetAssembly={x:Type FrameworkElement}}" 
            TargetType="{x:Type ContentControl}">
        <Border Background="#F5F5F5" BorderBrush="#FF959595" BorderThickness="1">
            <Grid>
                <Rectangle Fill="#F1F1F1" RadiusX="2" RadiusY="2" HorizontalAlignment="Left" Margin="2" Width="28"/>
                <Rectangle Fill="#E2E3E3" HorizontalAlignment="Left" Margin="30,2,0,2" Width="1"/>
                <Rectangle Fill="White" HorizontalAlignment="Left" Margin="31,2,0,2" Width="1"/>
                <ContentPresenter Margin="1,0" Grid.ColumnSpan="2"/>
            </Grid>
        </Border>
    </ControlTemplate>
    
    <ControlTemplate x:Key="{ComponentResourceKey ResourceId=TopLevelHeaderTemplateKey, TypeInTargetAssembly={x:Type MenuItem}}" 
            TargetType="{x:Type MenuItem}">
        <Grid SnapsToDevicePixels="true">
            <Rectangle x:Name="Bg" Fill="{TemplateBinding Background}" Stroke="{TemplateBinding BorderBrush}" StrokeThickness="1" RadiusX="1" RadiusY="1" />
            <DockPanel>
                <ContentPresenter Margin="4,0,6,0" x:Name="Icon" VerticalAlignment="Center" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" ContentSource="Icon"/>
                <Path Fill="{TemplateBinding Foreground}" FlowDirection="LeftToRight" Margin="7,0,0,0" x:Name="GlyphPanel" VerticalAlignment="Center" Visibility="Collapsed" Data="{StaticResource Checkmark}"/>
                <TextBlock x:Name="Tb" Foreground="{DynamicResource MenuHeaderForegroundBrush}">
                    <ContentPresenter Margin="{TemplateBinding Padding}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" ContentSource="Header" RecognizesAccessKey="True"/>
                </TextBlock>
            </DockPanel>
            <Popup x:Name="PART_Popup" AllowsTransparency="true" HorizontalOffset="1" 
                    IsOpen="{Binding Path=IsSubmenuOpen, RelativeSource={RelativeSource TemplatedParent}}" 
                    Placement="Bottom" PopupAnimation="{DynamicResource {x:Static SystemParameters.MenuPopupAnimationKey}}" 
                    VerticalOffset="-1" Focusable="false">
                <Border Name="PopupBorder" Margin="0,0,10,10" SnapsToDevicePixels="True">
                    <ContentControl x:Name="SubMenuBorder" IsTabStop="false" Template="{DynamicResource {ComponentResourceKey ResourceId=SubmenuContent, TypeInTargetAssembly={x:Type FrameworkElement}}}">
                        <ScrollViewer Style="{DynamicResource {ComponentResourceKey ResourceId=MenuScrollViewer, TypeInTargetAssembly={x:Type FrameworkElement}}}" CanContentScroll="true">
                            <ItemsPresenter Margin="2" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" 
                                    Grid.IsSharedSizeScope="true" KeyboardNavigation.DirectionalNavigation="Cycle" 
                                    KeyboardNavigation.TabNavigation="Cycle"/>
                        </ScrollViewer>
                    </ContentControl>
                </Border>
            </Popup>
        </Grid>
        <ControlTemplate.Triggers>
            <Trigger Property="IsSuspendingPopupAnimation" Value="true">
                <Setter Property="PopupAnimation" TargetName="PART_Popup" Value="None"/>
            </Trigger>
            <Trigger Property="Icon" Value="{x:Null}">
                <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
            </Trigger>
            <Trigger Property="IsChecked" Value="true">
                <Setter Property="Visibility" TargetName="GlyphPanel" Value="Visible"/>
                <Setter Property="Visibility" TargetName="Icon" Value="Collapsed"/>
            </Trigger>
             <Trigger Property="HasDropShadow" SourceName="PART_Popup" Value="true">
                <Setter Property="BitmapEffect" TargetName="PopupBorder" Value="{StaticResource ShowDrop}"/>
            </Trigger>
            <Trigger Property="IsHighlighted" Value="true">
                <Setter Property="Fill" TargetName="Bg" Value="{DynamicResource MenuHeaderBackgroundBrushOver}"/>
                <Setter Property="Foreground" TargetName="Tb" Value="{DynamicResource MenuHeaderForegroundBrushOver}"/>
            </Trigger>
            <Trigger Property="IsKeyboardFocused" Value="true">
                <Setter Property="Fill" TargetName="Bg" Value="{DynamicResource MenuHeaderBackgroundBrushPressed}"/>
                <Setter Property="Foreground" TargetName="Tb" Value="{DynamicResource MenuHeaderForegroundBrush}"/>
            </Trigger>
            <Trigger Property="IsSubmenuOpen" Value="true">
                <Setter Property="Fill" TargetName="Bg" Value="{DynamicResource MenuHeaderBackgroundBrushPressed}"/>
                <Setter Property="Foreground" TargetName="Tb" Value="{DynamicResource MenuHeaderForegroundBrush}"/>
            </Trigger>
            <Trigger Property="IsEnabled" Value="false">
                <Setter Property="Foreground" Value="{DynamicResource DisabledForegroundBrush}"/>
                <Setter Property="Fill" TargetName="GlyphPanel" Value="#848589"/>
            </Trigger>
        </ControlTemplate.Triggers>
    </ControlTemplate>
 
</ResourceDictionary>