Shaker/Avalonia/SukiUI/Controls/SukiWindow.axaml

<ResourceDictionary xmlns="https://github.com/avaloniaui"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:icons="clr-namespace:SukiUI.Content"
                    xmlns:suki="clr-namespace:SukiUI.Controls">
    <ControlTheme x:Key="SukiWindowTheme" TargetType="suki:SukiWindow">
        <Setter Property="Margin" Value="0" />
        <Setter Property="SystemDecorations" Value="Full" />
        <Setter Property="ExtendClientAreaChromeHints" Value="NoChrome" />
        <Setter Property="ExtendClientAreaTitleBarHeightHint" Value="-1" />
        <Setter Property="ExtendClientAreaToDecorationsHint" Value="True" />
        <Setter Property="TextElement.Foreground" Value="{DynamicResource SukiText}" />
        <Setter Property="FlowDirection" Value="{DynamicResource FlowDirectionPrimary}" />
        <Setter Property="Template">
            <ControlTemplate>
                <Border Margin="{TemplateBinding Margin}"
                        ClipToBounds="True"
                        CornerRadius="{OnPlatform '0',
                                                  Linux='10',
                                                  x:TypeArguments=CornerRadius}">
                    <VisualLayerManager Name="PART_VisualLayerManager" IsHitTestVisible="True">
                        <VisualLayerManager.ChromeOverlayLayer>
                            <!-- <suki:SukiHost /> -->
                            <ItemsControl ItemsSource="{Binding Hosts, RelativeSource={RelativeSource AncestorType={x:Type suki:SukiWindow}}}">
                                <ItemsControl.ItemsPanel>
                                    <ItemsPanelTemplate>
                                        <Panel />
                                    </ItemsPanelTemplate>
                                </ItemsControl.ItemsPanel>
                            </ItemsControl>
                        </VisualLayerManager.ChromeOverlayLayer>
                        <Panel x:Name="PART_Root">
                            <!--  Margin -100 is there to exclude the unwanted bright corners  -->
                            <suki:SukiBackground Name="PART_Background"
                                                 Margin="-150"
                                                 AnimationEnabled="{TemplateBinding BackgroundAnimationEnabled}"
                                                 ShaderCode="{TemplateBinding BackgroundShaderCode}"
                                                 ShaderFile="{TemplateBinding BackgroundShaderFile}"
                                                 Style="{TemplateBinding BackgroundStyle}"
                                                 TransitionTime="{TemplateBinding BackgroundTransitionTime}"
                                                 TransitionsEnabled="{TemplateBinding BackgroundTransitionsEnabled}" 
                                                 ForceSoftwareRendering="{TemplateBinding BackgroundForceSoftwareRendering}"/>
                            <Panel Background="White"
                                   IsVisible="{DynamicResource IsLight}"
                                   Opacity="0.1" />

                            <DockPanel LastChildFill="True">
                                <Panel DockPanel.Dock="Top">
                                    <Panel.Styles>
                                        <Style Selector="suki|SukiWindow[ShowBottomBorder=True] /template/ Border#PART_BottomBorder">
                                            <Setter Property="BorderThickness" Value="0,0,0,1" />
                                        </Style>
                                        <Style Selector="suki|SukiWindow[ShowBottomBorder=False] /template/ Border#PART_BottomBorder">
                                            <Setter Property="BorderThickness" Value="0,0,0,0" />
                                        </Style>
                                    </Panel.Styles>
                                    <StackPanel>
                                        <LayoutTransformControl Name="PART_LayoutTransform" RenderTransformOrigin="0%,0%">
                                            <Panel>
                                                <suki:GlassCard Name="PART_TitleBarBackground"
                                                                BorderThickness="0"
                                                                CornerRadius="0"
                                                                IsAnimated="False" />
                                                <DockPanel Margin="12,9" LastChildFill="True">
                                                    <StackPanel VerticalAlignment="Center"
                                                                DockPanel.Dock="Right"
                                                                Orientation="Horizontal"
                                                                Spacing="7">
                                                        <StackPanel.Styles>
                                                            <Style Selector="PathIcon">
                                                                <Setter Property="Height" Value="10" />
                                                                <Setter Property="Width" Value="10" />
                                                            </Style>
                                                        </StackPanel.Styles>
                                                        <ItemsControl ItemsSource="{TemplateBinding RightWindowTitleBarControls}">
                                                            <ItemsControl.ItemsPanel>
                                                                <ItemsPanelTemplate>
                                                                    <StackPanel FlowDirection="{DynamicResource FlowDirectionOpposite}" Orientation="Horizontal" />
                                                                </ItemsPanelTemplate>
                                                            </ItemsControl.ItemsPanel>
                                                        </ItemsControl>
                                                        <Button Name="PART_MinimizeButton"
                                                                VerticalContentAlignment="Bottom"
                                                                Classes="Basic Rounded WindowControlsButton"
                                                                IsVisible="{TemplateBinding CanMinimize}">
                                                            <PathIcon Margin="0,0,0,4"
                                                                      VerticalAlignment="Bottom"
                                                                      Data="{x:Static icons:Icons.WindowMinimize}" />
                                                        </Button>
                                                        <Button Name="PART_MaximizeButton"
                                                                Classes="Basic Rounded WindowControlsButton"
                                                                IsVisible="{TemplateBinding CanMaximize}">
                                                            <PathIcon x:Name="MaximizeIcon" Data="{x:Static icons:Icons.WindowMaximize}" />
                                                        </Button>
                                                        <Button Name="PART_CloseButton" Classes="Basic Rounded WindowControlsButton Close">
                                                            <PathIcon Data="{x:Static icons:Icons.WindowClose}" />
                                                        </Button>
                                                    </StackPanel>
                                                    <StackPanel VerticalAlignment="Center"
                                                                IsHitTestVisible="False"
                                                                Orientation="Horizontal"
                                                                Spacing="10">
                                                        <ContentPresenter HorizontalAlignment="Left"
                                                                          Content="{TemplateBinding LogoContent}"
                                                                          IsHitTestVisible="False" />
                                                        <TextBlock VerticalAlignment="Center"
                                                                   FontSize="{TemplateBinding TitleFontSize}"
                                                                   FontWeight="{TemplateBinding TitleFontWeight}"
                                                                   IsHitTestVisible="False"
                                                                   Text="{TemplateBinding Title}" />
                                                    </StackPanel>
                                                </DockPanel>
                                            </Panel>
                                        </LayoutTransformControl>
                                        <Menu IsEnabled="{TemplateBinding IsMenuVisible}" ItemsSource="{TemplateBinding MenuItems}" />
                                        <Border Name="PART_BottomBorder" BorderBrush="{DynamicResource SukiBorderBrush}" />
                                    </StackPanel>
                                </Panel>
                                <ContentPresenter x:Name="PART_ContentPresenter"
                                                  HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                  VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                                                  Content="{TemplateBinding Content}"
                                                  ContentTemplate="{TemplateBinding ContentTemplate}"
                                                  CornerRadius="10"
                                                  IsHitTestVisible="True" />
                            </DockPanel>
                        </Panel>
                    </VisualLayerManager>
                </Border>
            </ControlTemplate>
        </Setter>

        <Style Selector="^[WindowState=Maximized] /template/ PathIcon#MaximizeIcon">
            <Setter Property="Data" Value="{x:Static icons:Icons.WindowRestore}" />
        </Style>
        <Style Selector="^[WindowState=Normal] /template/ PathIcon#MaximizeIcon">
            <Setter Property="Data" Value="{x:Static icons:Icons.WindowMaximize}" />
        </Style>
        <Style Selector="^[IsTitleBarVisible=True]">
            <Style Selector="^[TitleBarAnimationEnabled=True]">
                <Style Selector="^ /template/ LayoutTransformControl#PART_LayoutTransform">
                    <Style.Animations>
                        <Animation Easing="{StaticResource MenuEasing}"
                                   FillMode="Forward"
                                   Duration="{StaticResource MediumAnimationDuration}">
                            <KeyFrame Cue="0%">
                                <Setter Property="ScaleTransform.ScaleY" Value="0" />
                                <Setter Property="IsVisible" Value="True" />
                            </KeyFrame>
                            <KeyFrame Cue="100%">
                                <Setter Property="ScaleTransform.ScaleY" Value="1" />
                            </KeyFrame>
                        </Animation>
                    </Style.Animations>
                </Style>
            </Style>
            <Style Selector="^[TitleBarAnimationEnabled=False]">
                <Style Selector="^ /template/ LayoutTransformControl#PART_LayoutTransform">
                    <Setter Property="IsVisible" Value="True" />
                </Style>
            </Style>
        </Style>
        <Style Selector="^[IsTitleBarVisible=False]">
            <Style Selector="^[TitleBarAnimationEnabled=True]">
                <Style Selector="^ /template/ LayoutTransformControl#PART_LayoutTransform">
                    <Style.Animations>
                        <Animation Easing="{StaticResource MenuEasing}"
                                   FillMode="Forward"
                                   Duration="{StaticResource MediumAnimationDuration}">
                            <KeyFrame Cue="0%">
                                <Setter Property="ScaleTransform.ScaleY" Value="1" />
                            </KeyFrame>
                            <KeyFrame Cue="100%">
                                <Setter Property="ScaleTransform.ScaleY" Value="0" />
                                <Setter Property="IsVisible" Value="False" />
                            </KeyFrame>
                        </Animation>
                    </Style.Animations>
                </Style>
            </Style>
            <Style Selector="^[TitleBarAnimationEnabled=False]">
                <Style Selector="^ /template/ LayoutTransformControl#PART_LayoutTransform">
                    <Setter Property="IsVisible" Value="False" />
                </Style>
            </Style>
        </Style>
    </ControlTheme>
    <ControlTheme x:Key="{x:Type suki:SukiWindow}"
                  BasedOn="{StaticResource SukiWindowTheme}"
                  TargetType="suki:SukiWindow" />
</ResourceDictionary>