refactor: replace all window with custom ChromelessWindow

src/Converters/WindowStateConverters.cs

@@ -1,34 +0,0 @@
-using System;
-
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Data.Converters;
-
-namespace SourceGit.Converters
-{
-    public static class WindowStateConverters
-    {
-        public static readonly FuncValueConverter<WindowState, Thickness> ToContentMargin =
-            new FuncValueConverter<WindowState, Thickness>(state =>
-            {
-                if (OperatingSystem.IsWindows() && state == WindowState.Maximized)
-                    return new Thickness(6);
-                else if (OperatingSystem.IsLinux() && state != WindowState.Maximized)
-                    return new Thickness(6);
-                else
-                    return new Thickness(0);
-            });
-
-        public static readonly FuncValueConverter<WindowState, GridLength> ToTitleBarHeight =
-            new FuncValueConverter<WindowState, GridLength>(state =>
-            {
-                if (state == WindowState.Maximized)
-                    return new GridLength(OperatingSystem.IsMacOS() ? 34 : 30);
-                else
-                    return new GridLength(38);
-            });
-
-        public static readonly FuncValueConverter<WindowState, bool> IsNormal =
-            new FuncValueConverter<WindowState, bool>(state => state == WindowState.Normal);
-    }
-}

src/Resources/Styles.axaml

@@ -18,6 +18,129 @@
     <Setter Property="HideDelay" Value="0:0:0.2"/>
   </Style>
 
+  <Style Selector="Window">
+    <Setter Property="Background" Value="{DynamicResource Brush.Window}"/>
+    <Setter Property="BorderThickness" Value="1"/>
+    <Setter Property="BorderBrush" Value="{DynamicResource Brush.Border0}"/>
+    <Setter Property="ExtendClientAreaChromeHints" Value="NoChrome"/>
+    <Setter Property="ExtendClientAreaToDecorationsHint" Value="True"/>
+    <Setter Property="SystemDecorations" Value="Full"/>
+    <Setter Property="Padding" Value="0"/>
+  </Style>
+
+  <Style Selector="Window[WindowState=Maximized]">
+    <Setter Property="BorderThickness" Value="0"/>
+    <Setter Property="Padding" Value="6"/>
+  </Style>
+
+  <Style Selector="Window.custom_window_frame">
+    <Setter Property="Background" Value="Transparent"/>
+    <Setter Property="BorderThickness" Value="0"/>
+    <Setter Property="ExtendClientAreaChromeHints" Value="Default"/>
+    <Setter Property="ExtendClientAreaToDecorationsHint" Value="False"/>
+    <Setter Property="SystemDecorations" Value="None"/>
+    <Setter Property="Padding" Value="12"/>
+
+    <Setter Property="Template">
+      <ControlTemplate>
+        <Grid>
+          <Border x:Name="PART_ContentRoot"
+                  Background="{DynamicResource Brush.Window}"
+                  BorderBrush="{DynamicResource Brush.Border0}"
+                  BorderThickness="1"
+                  Margin="{TemplateBinding Padding}"
+                  CornerRadius="8"
+                  Effect="drop-shadow(0 0 12 #90000000)"
+                  ClipToBounds="True">
+            <VisualLayerManager>
+              <ContentPresenter Name="PART_ContentPresenter"
+                                ContentTemplate="{TemplateBinding ContentTemplate}"
+                                Content="{TemplateBinding Content}"
+                                HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
+                                VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
+            </VisualLayerManager>
+          </Border>
+
+          <Grid x:Name="PART_ResizeBorderContainer" Margin="{TemplateBinding Padding}" IsHitTestVisible="True">
+            <Border x:Name="PART_BorderTopLeft"
+                    Width="4" Height="4"
+                    Background="Transparent"
+                    HorizontalAlignment="Left" VerticalAlignment="Top"
+                    Cursor="TopLeftCorner"
+                    Tag="{x:Static WindowEdge.NorthWest}"/>
+
+            <Border x:Name="PART_BorderTop"
+                    Height="4" Margin="4,0"
+                    Background="Transparent"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Top"
+                    Cursor="TopSide"
+                    Tag="{x:Static WindowEdge.North}"/>
+
+            <Border x:Name="PART_BorderTopRight"
+                    Width="4" Height="4"
+                    Background="Transparent"
+                    HorizontalAlignment="Right" VerticalAlignment="Top"
+                    Cursor="TopRightCorner"
+                    Tag="{x:Static WindowEdge.NorthEast}"/>
+
+            <Border x:Name="PART_BorderLeft"
+                    Width="4" Margin="0,4"
+                    Background="Transparent"
+                    HorizontalAlignment="Left" VerticalAlignment="Stretch"
+                    Cursor="LeftSide"
+                    Tag="{x:Static WindowEdge.West}"/>
+
+            <Border x:Name="PART_BorderRight"
+                    Width="4" Margin="0,4"
+                    Background="Transparent"
+                    HorizontalAlignment="Right" VerticalAlignment="Stretch"
+                    Cursor="RightSide"
+                    Tag="{x:Static WindowEdge.East}"/>
+
+            <Border x:Name="PART_BorderBottomLeft"
+                    Width="4" Height="4"
+                    Background="Transparent"
+                    HorizontalAlignment="Left" VerticalAlignment="Bottom"
+                    Cursor="BottomLeftCorner"
+                    Tag="{x:Static WindowEdge.SouthWest}"/>
+
+            <Border x:Name="PART_BorderBottom"
+                    Height="4" Margin="4,0"
+                    Background="Transparent"
+                    HorizontalAlignment="Stretch" VerticalAlignment="Bottom"
+                    Cursor="BottomSide"
+                    Tag="{x:Static WindowEdge.South}"/>
+
+            <Border x:Name="PART_BorderBottomRight"
+                    Width="4" Height="4"
+                    Background="Transparent"
+                    HorizontalAlignment="Right" VerticalAlignment="Bottom"
+                    Cursor="BottomRightCorner"
+                    Tag="{x:Static WindowEdge.SouthEast}"/>
+          </Grid>
+        </Grid>
+      </ControlTemplate>
+    </Setter>
+  </Style>
+
+  <Style Selector="Window.custom_window_frame[WindowState=Maximized]">
+    <Setter Property="Padding" Value="0"/>
+  </Style>
+
+  <Style Selector="Window.custom_window_frame[WindowState=Maximized] /template/ Border#PART_ContentRoot">
+    <Setter Property="BorderThickness" Value="0"/>
+  </Style>
+
+  <Style Selector="Window.custom_window_frame[WindowState=Maximized] /template/ Grid#PART_ResizeBorderContainer">
+    <Setter Property="IsVisible" Value="False"/>
+    <Setter Property="IsHitTestVisible" Value="False"/>
+  </Style>
+
+  <Style Selector="Window.custom_window_frame[CanResize=False] /template/ Grid#PART_ResizeBorderContainer">
+    <Setter Property="IsVisible" Value="False"/>
+    <Setter Property="IsHitTestVisible" Value="False"/>
+  </Style>
+
   <Style Selector="ContentPresenter">
     <Setter Property="FontFamily" Value="{Binding Source={x:Static vm:Preference.Instance}, Path=DefaultFont}"/>
     <Setter Property="FontSize" Value="{Binding Source={x:Static vm:Preference.Instance}, Path=DefaultFontSize}"/>

src/Views/About.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -9,20 +9,10 @@
                     x:DataType="v:About"
                     Icon="/App.ico"
                     Title="{DynamicResource Text.About}"
-        Background="Transparent"
                     SizeToContent="WidthAndHeight"
                     CanResize="False"
-        WindowStartupLocation="CenterScreen"
+                    WindowStartupLocation="CenterScreen">
-        ExtendClientAreaToDecorationsHint="True"
+  <Grid RowDefinitions="Auto,*">
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid RowDefinitions="Auto,*" Margin="{OnPlatform 0, Linux=6}">
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="2"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
     <!-- TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto" Height="30">
       <Border Grid.Column="0" Grid.ColumnSpan="3"
@@ -59,7 +49,7 @@
       </Button>
     </Grid>
 
-    <Grid Grid.Row="1" ColumnDefinitions="Auto,*" Background="{DynamicResource Brush.Window}">
+    <Grid Grid.Row="1" ColumnDefinitions="Auto,*">
       <Image Grid.Column="0"
              Width="200" Height="200"
              Margin="8,0"
@@ -100,4 +90,4 @@
       </StackPanel>
     </Grid>
   </Grid>
-</Window>
+</v:ChromelessWindow>

src/Views/About.axaml.cs

@@ -1,12 +1,11 @@
 using System.Reflection;
 
-using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Interactivity;
 
 namespace SourceGit.Views
 {
-    public partial class About : Window
+    public partial class About : ChromelessWindow
     {
         public string Version
         {

src/Views/AssumeUnchangedManager.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -10,20 +10,10 @@
                     x:DataType="vm:AssumeUnchangedManager"
                     Icon="/App.ico"
                     Title="{DynamicResource Text.AssumeUnchanged}"
-        Background="Transparent"
                     Width="600" Height="400"
                     CanResize="False"
-        WindowStartupLocation="CenterOwner"
+                    WindowStartupLocation="CenterOwner">
-        ExtendClientAreaToDecorationsHint="True"
+  <Grid RowDefinitions="Auto,*">    
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid RowDefinitions="Auto,*" Margin="{OnPlatform 0, Linux=6}">
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="2"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-    
     <!-- TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto" Height="30">
       <Border Grid.Column="0" Grid.ColumnSpan="3"
@@ -61,7 +51,7 @@
     </Grid>
     
     <!-- Unchanged Files -->
-    <Grid Grid.Row="1" Background="{DynamicResource Brush.Window}">
+    <Grid Grid.Row="1">
       <DataGrid Margin="8"
                 Background="{DynamicResource Brush.Contents}"
                 ItemsSource="{Binding Files}"
@@ -110,4 +100,4 @@
       </StackPanel>
     </Grid>    
   </Grid>
-</Window>
+</v:ChromelessWindow>

src/Views/AssumeUnchangedManager.axaml.cs

@@ -4,7 +4,7 @@ using Avalonia.Interactivity;
 
 namespace SourceGit.Views
 {
-    public partial class AssumeUnchangedManager : Window
+    public partial class AssumeUnchangedManager : ChromelessWindow
     {
         public AssumeUnchangedManager()
         {

src/Views/Blame.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -12,25 +12,15 @@
                     x:DataType="vm:Blame"
                     Icon="/App.ico"
                     Title="{DynamicResource Text.Blame}"
-        Background="Transparent"
                     WindowStartupLocation="CenterOwner"
-        MinWidth="1280" MinHeight="720"
+                    MinWidth="1280" MinHeight="720">
-        ExtendClientAreaToDecorationsHint="True"
+  <Grid>
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid Margin="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.ToContentMargin}}">
     <Grid.RowDefinitions>
       <RowDefinition Height="30"/>
       <RowDefinition Height="24"/>
       <RowDefinition Height="*"/>
     </Grid.RowDefinitions>
 
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="3"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
     <!-- TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,Auto,*,Auto">
       <!-- Bottom border -->
@@ -58,12 +48,12 @@
     </Grid>
 
     <!-- File -->
-    <Border Grid.Row="1" Padding="8,0" Background="{DynamicResource Brush.Window}">
+    <Border Grid.Row="1" Padding="8,0">
       <TextBlock Text="{Binding Title}" VerticalAlignment="Center"/>
     </Border>
 
     <!-- Body -->
-    <Grid Grid.Row="2" Background="{DynamicResource Brush.Window}">
+    <Grid Grid.Row="2">
       <!-- Blame View -->
       <v:BlameTextEditor HorizontalScrollBarVisibility="Auto"
                          VerticalScrollBarVisibility="Auto"
@@ -86,64 +76,5 @@
       <!-- Loading -->
       <v:LoadingIcon Width="48" Height="48" IsVisible="{Binding Data, Converter={x:Static ObjectConverters.IsNull}}"/>
     </Grid>
-
-    <!-- Custom window sizer for Linux -->
-    <Grid Grid.Row="0" Grid.RowSpan="3" IsVisible="{OnPlatform False, Linux=True}" IsHitTestVisible="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.IsNormal}}">
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Top"
-              Cursor="TopLeftCorner"
-              Tag="{x:Static WindowEdge.NorthWest}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Height="4" Margin="4,0"
-              Background="Transparent"
-              HorizontalAlignment="Stretch" VerticalAlignment="Top"
-              Cursor="TopSide"
-              Tag="{x:Static WindowEdge.North}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Top"
-              Cursor="TopRightCorner"
-              Tag="{x:Static WindowEdge.NorthEast}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Margin="0,4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Stretch"
-              Cursor="LeftSide"
-              Tag="{x:Static WindowEdge.West}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Margin="0,4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Stretch"
-              Cursor="RightSide"
-              Tag="{x:Static WindowEdge.East}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Bottom"
-              Cursor="BottomLeftCorner"
-              Tag="{x:Static WindowEdge.SouthWest}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Height="4" Margin="4,0"
-              Background="Transparent"
-              HorizontalAlignment="Stretch" VerticalAlignment="Bottom"
-              Cursor="BottomSide"
-              Tag="{x:Static WindowEdge.South}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Bottom"
-              Cursor="BottomRightCorner"
-              Tag="{x:Static WindowEdge.SouthEast}"
-              PointerPressed="CustomResizeWindow"/>
   </Grid>
-  </Grid>
+</v:ChromelessWindow>
-</Window>

src/Views/Blame.axaml.cs

@@ -319,7 +319,7 @@ namespace SourceGit.Views
         private TextMate.Installation _textMate = null;
     }
 
-    public partial class Blame : Window
+    public partial class Blame : ChromelessWindow
     {
         public Blame()
         {
@@ -334,25 +334,11 @@ namespace SourceGit.Views
         private void MaximizeOrRestoreWindow(object sender, TappedEventArgs e)
         {
             if (WindowState == WindowState.Maximized)
-            {
                 WindowState = WindowState.Normal;
-            }
             else
-            {
                 WindowState = WindowState.Maximized;
-            }
-            e.Handled = true;
-        }
 
-        private void CustomResizeWindow(object sender, PointerPressedEventArgs e)
+            e.Handled = true;
-        {
-            if (sender is Border border)
-            {
-                if (border.Tag is WindowEdge edge)
-                {
-                    BeginResizeDrag(edge, e);
-                }
-            }
         }
 
         private void BeginMoveWindow(object sender, PointerPressedEventArgs e)

src/Views/BranchCompare.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -12,25 +12,15 @@
                     x:Name="me"
                     Icon="/App.ico"
                     Title="{DynamicResource Text.BranchCompare}"
-        Background="Transparent"
-        WindowStartupLocation="CenterOwner"
                     MinWidth="1280" MinHeight="720"
-        ExtendClientAreaToDecorationsHint="True"
+                    WindowStartupLocation="CenterOwner">
-        ExtendClientAreaChromeHints="NoChrome"
+  <Grid>
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid Margin="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.ToContentMargin}}">
     <Grid.RowDefinitions>
       <RowDefinition Height="30"/>
       <RowDefinition Height="64"/>
       <RowDefinition Height="*"/>
     </Grid.RowDefinitions>
 
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="3"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
     <!-- TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,Auto,*,Auto">
       <!-- Bottom border -->
@@ -58,7 +48,7 @@
     </Grid>
 
     <!-- Compare Targets -->
-    <Border Grid.Row="1" Background="{DynamicResource Brush.Window}">
+    <Border Grid.Row="1">
       <Grid Margin="48,8,48,8" ColumnDefinitions="*,48,*">
         <Border Grid.Column="0" BorderBrush="{DynamicResource Brush.Border2}" BorderThickness="1" Background="{DynamicResource Brush.Contents}" CornerRadius="4" Padding="4">
           <Grid RowDefinitions="Auto,*">
@@ -103,7 +93,7 @@
     </Border>    
 
     <!-- Changes -->
-    <Border Grid.Row="2" Background="{DynamicResource Brush.Window}">
+    <Border Grid.Row="2">
       <Grid Margin="8,0,8,8">
         <Grid.ColumnDefinitions>
           <ColumnDefinition Width="256" MinWidth="200" MaxWidth="480"/>
@@ -177,64 +167,5 @@
         </Grid>
       </Grid>
     </Border>
-
-    <!-- Custom window sizer for Linux -->
-    <Grid Grid.Row="0" Grid.RowSpan="3" IsVisible="{OnPlatform False, Linux=True}" IsHitTestVisible="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.IsNormal}}">
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Top"
-              Cursor="TopLeftCorner"
-              Tag="{x:Static WindowEdge.NorthWest}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Height="4" Margin="4,0"
-              Background="Transparent"
-              HorizontalAlignment="Stretch" VerticalAlignment="Top"
-              Cursor="TopSide"
-              Tag="{x:Static WindowEdge.North}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Top"
-              Cursor="TopRightCorner"
-              Tag="{x:Static WindowEdge.NorthEast}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Margin="0,4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Stretch"
-              Cursor="LeftSide"
-              Tag="{x:Static WindowEdge.West}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Margin="0,4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Stretch"
-              Cursor="RightSide"
-              Tag="{x:Static WindowEdge.East}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Bottom"
-              Cursor="BottomLeftCorner"
-              Tag="{x:Static WindowEdge.SouthWest}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Height="4" Margin="4,0"
-              Background="Transparent"
-              HorizontalAlignment="Stretch" VerticalAlignment="Bottom"
-              Cursor="BottomSide"
-              Tag="{x:Static WindowEdge.South}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Bottom"
-              Cursor="BottomRightCorner"
-              Tag="{x:Static WindowEdge.SouthEast}"
-              PointerPressed="CustomResizeWindow"/>
   </Grid>
-  </Grid>
+</v:ChromelessWindow>
-</Window>

src/Views/BranchCompare.axaml.cs

@@ -3,7 +3,7 @@ using Avalonia.Input;
 
 namespace SourceGit.Views
 {
-    public partial class BranchCompare : Window
+    public partial class BranchCompare : ChromelessWindow
     {
         public BranchCompare()
         {
@@ -20,17 +20,6 @@ namespace SourceGit.Views
             e.Handled = true;
         }
 
-        private void CustomResizeWindow(object sender, PointerPressedEventArgs e)
-        {
-            if (sender is Border border)
-            {
-                if (border.Tag is WindowEdge edge)
-                {
-                    BeginResizeDrag(edge, e);
-                }
-            }
-        }
-
         private void BeginMoveWindow(object sender, PointerPressedEventArgs e)
         {
             BeginMoveDrag(e);

src/Views/ChromelessWindow.cs

@@ -0,0 +1,54 @@
+using System;
+
+using Avalonia.Controls;
+using Avalonia.Controls.Primitives;
+using Avalonia.Input;
+
+namespace SourceGit.Views
+{
+    public class ChromelessWindow : Window
+    {
+        protected override Type StyleKeyOverride => typeof(Window);
+
+        public ChromelessWindow()
+        {
+            if (OperatingSystem.IsLinux())
+                Classes.Add("custom_window_frame");
+        }
+
+        protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
+        {
+            base.OnApplyTemplate(e);
+
+            if (Classes.Contains("custom_window_frame") && CanResize)
+            {
+                string[] borderNames = [
+                    "PART_BorderTopLeft",
+                    "PART_BorderTop",
+                    "PART_BorderTopRight",
+                    "PART_BorderLeft",
+                    "PART_BorderRight",
+                    "PART_BorderBottomLeft",
+                    "PART_BorderBottom",
+                    "PART_BorderBottomRight",
+                ];
+
+                foreach (var name in borderNames)
+                {
+                    var border = e.NameScope.Find<Border>(name);
+                    if (border != null)
+                    {
+                        border.PointerPressed -= OnWindowBorderPointerPressed;
+                        border.PointerPressed += OnWindowBorderPointerPressed;
+                    }
+                }
+            }
+        }
+
+        private void OnWindowBorderPointerPressed(object sender, PointerPressedEventArgs e)
+        {
+            if (sender is Border border && border.Tag is WindowEdge edge)
+                BeginResizeDrag(edge, e);
+        }
+    }
+}

src/Views/FileHistories.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -12,23 +12,13 @@
                     x:Name="me"
                     Icon="/App.ico"
                     Title="{DynamicResource Text.FileHistory}"
-        Background="Transparent"
+                    MinWidth="1280" MinHeight="720">
-        MinWidth="1280" MinHeight="720"
+  <Grid>
-        ExtendClientAreaToDecorationsHint="True"
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid Margin="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.ToContentMargin}}">
     <Grid.RowDefinitions>
       <RowDefinition Height="30"/>
       <RowDefinition Height="*"/>
     </Grid.RowDefinitions>
 
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="2"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
     <!-- TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,Auto,*,Auto">
       <!-- Bottom border -->
@@ -56,7 +46,7 @@
     </Grid>
 
     <!-- Body -->
-    <Grid Grid.Row="1" Background="{DynamicResource Brush.Window}">
+    <Grid Grid.Row="1">
       <Grid.ColumnDefinitions>
         <ColumnDefinition Width="300" MinWidth="300" MaxWidth="600"/>
         <ColumnDefinition Width="4"/>
@@ -143,64 +133,5 @@
         </Grid>
       </Grid>
     </Grid>
-
-    <!-- Custom window sizer for Linux -->
-    <Grid Grid.Row="0" Grid.RowSpan="2" IsVisible="{OnPlatform False, Linux=True}" IsHitTestVisible="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.IsNormal}}">
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Top"
-              Cursor="TopLeftCorner"
-              Tag="{x:Static WindowEdge.NorthWest}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Height="4" Margin="4,0"
-              Background="Transparent"
-              HorizontalAlignment="Stretch" VerticalAlignment="Top"
-              Cursor="TopSide"
-              Tag="{x:Static WindowEdge.North}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Top"
-              Cursor="TopRightCorner"
-              Tag="{x:Static WindowEdge.NorthEast}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Margin="0,4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Stretch"
-              Cursor="LeftSide"
-              Tag="{x:Static WindowEdge.West}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Margin="0,4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Stretch"
-              Cursor="RightSide"
-              Tag="{x:Static WindowEdge.East}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Bottom"
-              Cursor="BottomLeftCorner"
-              Tag="{x:Static WindowEdge.SouthWest}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Height="4" Margin="4,0"
-              Background="Transparent"
-              HorizontalAlignment="Stretch" VerticalAlignment="Bottom"
-              Cursor="BottomSide"
-              Tag="{x:Static WindowEdge.South}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Bottom"
-              Cursor="BottomRightCorner"
-              Tag="{x:Static WindowEdge.SouthEast}"
-              PointerPressed="CustomResizeWindow"/>
   </Grid>
-  </Grid>
+</v:ChromelessWindow>
-</Window>

src/Views/FileHistories.axaml.cs

@@ -3,7 +3,7 @@ using Avalonia.Input;
 
 namespace SourceGit.Views
 {
-    public partial class FileHistories : Window
+    public partial class FileHistories : ChromelessWindow
     {
         public FileHistories()
         {
@@ -13,25 +13,11 @@ namespace SourceGit.Views
         private void MaximizeOrRestoreWindow(object sender, TappedEventArgs e)
         {
             if (WindowState == WindowState.Maximized)
-            {
                 WindowState = WindowState.Normal;
-            }
             else
-            {
                 WindowState = WindowState.Maximized;
-            }
-            e.Handled = true;
-        }
 
-        private void CustomResizeWindow(object sender, PointerPressedEventArgs e)
+            e.Handled = true;
-        {
-            if (sender is Border border)
-            {
-                if (border.Tag is WindowEdge edge)
-                {
-                    BeginResizeDrag(edge, e);
-                }
-            }
         }
 
         private void BeginMoveWindow(object sender, PointerPressedEventArgs e)

src/Views/Hotkeys.axaml

@@ -1,27 +1,18 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
                     xmlns:c="using:SourceGit.Converters"
                     xmlns:vm="using:SourceGit.ViewModels"
+                    xmlns:v="using:SourceGit.Views"
                     mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
                     x:Class="SourceGit.Views.Hotkeys"
                     Icon="/App.ico"
                     Title="{DynamicResource Text.Hotkeys}"
-        Background="Transparent"
                     SizeToContent="WidthAndHeight"
                     CanResize="False"
-        WindowStartupLocation="CenterOwner"
+                    WindowStartupLocation="CenterOwner">
-        ExtendClientAreaToDecorationsHint="True"
+  <Grid RowDefinitions="Auto,*">
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid RowDefinitions="Auto,*" Margin="{OnPlatform 0, Linux=6}">
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="2"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
     <!-- TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto" Height="30">
       <Border Grid.Column="0" Grid.ColumnSpan="3"
@@ -59,7 +50,7 @@
     </Grid>
 
     <!-- Body -->
-    <Border Grid.Row="1" Background="{DynamicResource Brush.Window}">
+    <Border Grid.Row="1">
       <StackPanel Orientation="Vertical" Margin="16,8,16,16">
         <TextBlock Text="{DynamicResource Text.Hotkeys.Global}"
                    Foreground="{DynamicResource Brush.FG2}"
@@ -135,4 +126,4 @@
       </StackPanel>
     </Border>    
   </Grid>
-</Window>
+</v:ChromelessWindow>

src/Views/Hotkeys.axaml.cs

@@ -1,10 +1,9 @@
-using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Interactivity;
 
 namespace SourceGit.Views
 {
-    public partial class Hotkeys : Window
+    public partial class Hotkeys : ChromelessWindow
     {
         public Hotkeys()
         {

src/Views/Launcher.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -13,38 +13,24 @@
                     x:Name="me"
                     Icon="/App.ico"
                     Title="SourceGit"
-        Background="Transparent"
                     MinWidth="1280" MinHeight="720"
                     Width="{Binding Source={x:Static vm:Preference.Instance}, Path=Layout.LauncherWidth, Mode=TwoWay}"
                     Height="{Binding Source={x:Static vm:Preference.Instance}, Path=Layout.LauncherHeight, Mode=TwoWay}"
                     WindowState="{Binding Source={x:Static vm:Preference.Instance}, Path=Layout.LauncherWindowState, Mode=TwoWay}"
-        WindowStartupLocation="CenterScreen"
+                    WindowStartupLocation="CenterScreen"> 
-        ExtendClientAreaToDecorationsHint="True"
+  <Grid>
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Window.Resources>
-    <SolidColorBrush x:Key="SystemControlErrorTextForegroundBrush" Color="Red"/>
-  </Window.Resources>
-  
-  <Grid Margin="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.ToContentMargin}}">
     <Grid.RowDefinitions>
-      <RowDefinition Height="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.ToTitleBarHeight}}"/>
+      <RowDefinition Height="{Binding #me.TitleBarHeight}"/>
       <RowDefinition Height="*"/>
     </Grid.RowDefinitions>
 
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="2"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
     <!-- Custom TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto">
       <!-- Bottom border -->
       <Border Grid.Column="0" Grid.ColumnSpan="3"
               Background="{DynamicResource Brush.TitleBar}"
               BorderThickness="0,0,0,1" BorderBrush="{DynamicResource Brush.Border0}"
-              DoubleTapped="MaximizeOrRestoreWindow"
+              DoubleTapped="OnTitleBarDoubleTapped"
               PointerPressed="BeginMoveWindow"/>
 
       <!-- Caption Buttons (macOS) -->
@@ -97,7 +83,7 @@
                       x:Name="launcherTabsScroller"
                       HorizontalScrollBarVisibility="Hidden"
                       VerticalScrollBarVisibility="Disabled"
-                      DoubleTapped="MaximizeOrRestoreWindow"
+                      DoubleTapped="OnTitleBarDoubleTapped"
                       PointerPressed="BeginMoveWindow"
                       PointerWheelChanged="ScrollTabs"
                       ScrollChanged="OnTabsScrollChanged">
@@ -366,64 +352,5 @@
         </ItemsControl>
       </ScrollViewer>
     </Grid>
-
-    <!-- Custom window sizer for Linux -->
-    <Grid Grid.Row="0" Grid.RowSpan="2" IsVisible="{OnPlatform False, Linux=True}" IsHitTestVisible="{Binding #me.WindowState, Converter={x:Static c:WindowStateConverters.IsNormal}}">
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Top"
-              Cursor="TopLeftCorner"
-              Tag="{x:Static WindowEdge.NorthWest}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Height="4" Margin="4,0"
-              Background="Transparent"
-              HorizontalAlignment="Stretch" VerticalAlignment="Top"
-              Cursor="TopSide"
-              Tag="{x:Static WindowEdge.North}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Top"
-              Cursor="TopRightCorner"
-              Tag="{x:Static WindowEdge.NorthEast}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Margin="0,4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Stretch"
-              Cursor="LeftSide"
-              Tag="{x:Static WindowEdge.West}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Margin="0,4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Stretch"
-              Cursor="RightSide"
-              Tag="{x:Static WindowEdge.East}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Left" VerticalAlignment="Bottom"
-              Cursor="BottomLeftCorner"
-              Tag="{x:Static WindowEdge.SouthWest}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Height="4" Margin="4,0"
-              Background="Transparent"
-              HorizontalAlignment="Stretch" VerticalAlignment="Bottom"
-              Cursor="BottomSide"
-              Tag="{x:Static WindowEdge.South}"
-              PointerPressed="CustomResizeWindow"/>
-
-      <Border Width="4" Height="4"
-              Background="Transparent"
-              HorizontalAlignment="Right" VerticalAlignment="Bottom"
-              Cursor="BottomRightCorner"
-              Tag="{x:Static WindowEdge.SouthEast}"
-              PointerPressed="CustomResizeWindow"/>
   </Grid>
-  </Grid>
+</v:ChromelessWindow>
-</Window>

src/Views/Launcher.axaml.cs

@@ -7,8 +7,17 @@ using Avalonia.Interactivity;
 
 namespace SourceGit.Views
 {
-    public partial class Launcher : Window, Models.INotificationReceiver
+    public partial class Launcher : ChromelessWindow, Models.INotificationReceiver
     {
+        public static readonly StyledProperty<GridLength> TitleBarHeightProperty =
+            AvaloniaProperty.Register<Launcher, GridLength>(nameof(TitleBarHeight), new GridLength(38, GridUnitType.Pixel));
+
+        public GridLength TitleBarHeight
+        {
+            get => GetValue(TitleBarHeightProperty);
+            set => SetValue(TitleBarHeightProperty, value);
+        }
+
         public Launcher()
         {
             DataContext = new ViewModels.Launcher();
@@ -34,6 +43,20 @@ namespace SourceGit.Views
             }
         }
 
+        protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
+        {
+            base.OnPropertyChanged(change);
+
+            if (change.Property == WindowStateProperty)
+            {
+                var state = (WindowState)change.NewValue;
+                if (state == WindowState.Maximized)
+                    SetCurrentValue(TitleBarHeightProperty, new GridLength(OperatingSystem.IsMacOS() ? 34 : 30));
+                else
+                    SetCurrentValue(TitleBarHeightProperty, new GridLength(38, GridUnitType.Pixel));
+            }
+        }
+
         protected override void OnKeyDown(KeyEventArgs e)
         {
             var vm = DataContext as ViewModels.Launcher;
@@ -136,37 +159,21 @@ namespace SourceGit.Views
             base.OnClosing(e);
         }
 
-        private void MaximizeOrRestoreWindow(object sender, TappedEventArgs e)
+        private void OnTitleBarDoubleTapped(object sender, TappedEventArgs e)
         {
             if (WindowState == WindowState.Maximized)
-            {
                 WindowState = WindowState.Normal;
-            }
             else
-            {
                 WindowState = WindowState.Maximized;
-            }
-            e.Handled = true;
-        }
 
-        private void CustomResizeWindow(object sender, PointerPressedEventArgs e)
+            e.Handled = true;
-        {
-            if (sender is Border border)
-            {
-                if (border.Tag is WindowEdge edge)
-                {
-                    BeginResizeDrag(edge, e);
-                }
-            }
         }
 
         private void BeginMoveWindow(object sender, PointerPressedEventArgs e)
         {
             if (e.ClickCount != 2)
-            {
                 BeginMoveDrag(e);
         }
-        }
 
         private void ScrollTabs(object sender, PointerWheelEventArgs e)
         {

src/Views/Preference.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -14,20 +14,10 @@
                     x:Name="me"
                     Icon="/App.ico"
                     Title="{DynamicResource Text.Preference}"
-        Background="Transparent"
                     Width="600" SizeToContent="Height"
                     CanResize="False"
-        WindowStartupLocation="CenterScreen"
+                    WindowStartupLocation="CenterScreen">
-        ExtendClientAreaToDecorationsHint="True"
+  <Grid RowDefinitions="Auto,Auto">
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid RowDefinitions="Auto,Auto" Margin="{OnPlatform 0, Linux=6}">
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="2"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
     <!-- TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto" Height="30">
       <Border Grid.Column="0" Grid.ColumnSpan="3"
@@ -62,7 +52,7 @@
     </Grid>
 
     <!-- Body -->
-    <Border Grid.Row="1" Background="{DynamicResource Brush.Window}">
+    <Border Grid.Row="1">
       <TabControl>
         <TabItem>
           <TabItem.Header>
@@ -553,4 +543,4 @@
       </TabControl>
     </Border>    
   </Grid>
-</Window>
+</v:ChromelessWindow>

src/Views/Preference.axaml.cs

@@ -5,7 +5,6 @@ using System.Threading.Tasks;
 
 using Avalonia;
 using Avalonia.Collections;
-using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Interactivity;
 using Avalonia.Media;
@@ -14,7 +13,7 @@ using Avalonia.Threading;
 
 namespace SourceGit.Views
 {
-    public partial class Preference : Window
+    public partial class Preference : ChromelessWindow
     {
         public AvaloniaList<FontFamily> InstalledFonts
         {

src/Views/SelfUpdate.axaml

@@ -1,29 +1,20 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
                     xmlns:m="using:SourceGit.Models"
                     xmlns:vm="using:SourceGit.ViewModels"
+                    xmlns:v="using:SourceGit.Views"
                     xmlns:sys="clr-namespace:System;assembly=mscorlib"
                     mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
                     x:Class="SourceGit.Views.SelfUpdate"
                     x:DataType="vm:SelfUpdate"
                     Title="{DynamicResource Text.SelfUpdate.Title}"
                     Icon="/App.ico"
-        Background="Transparent"
                     SizeToContent="WidthAndHeight"
                     CanResize="False"
-        WindowStartupLocation="CenterOwner"
+                    WindowStartupLocation="CenterOwner">
-        ExtendClientAreaToDecorationsHint="True"
+  <Grid RowDefinitions="Auto,*">
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid RowDefinitions="Auto,*" Margin="{OnPlatform 0, Linux=6}">
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="2"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
     <!-- TitleBar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto" Height="30">
       <Border Grid.Column="0" Grid.ColumnSpan="3"
@@ -61,7 +52,7 @@
     </Grid>
 
     <!-- Body -->
-    <Grid Grid.Row="1" Background="{DynamicResource Brush.Window}">
+    <Grid Grid.Row="1">
       <ContentControl Content="{Binding Data}">
         <ContentControl.DataTemplates>
           <DataTemplate DataType="m:Version">
@@ -150,4 +141,4 @@
       </ContentControl>
     </Grid>
   </Grid>
-</Window>
+</v:ChromelessWindow>

src/Views/SelfUpdate.axaml.cs

@@ -4,7 +4,7 @@ using Avalonia.Interactivity;
 
 namespace SourceGit.Views
 {
-    public partial class SelfUpdate : Window
+    public partial class SelfUpdate : ChromelessWindow
     {
         public SelfUpdate()
         {

src/Views/Statistics.axaml

@@ -1,4 +1,4 @@
-<Window xmlns="https://github.com/avaloniaui"
+<v:ChromelessWindow xmlns="https://github.com/avaloniaui"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
                     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -9,25 +9,10 @@
                     x:Class="SourceGit.Views.Statistics"
                     x:DataType="vm:Statistics"
                     Title="{DynamicResource Text.Statistics}"
-        Background="Transparent"
                     Width="800" Height="450"
                     WindowStartupLocation="CenterOwner"
-        CanResize="False"
+                    CanResize="False">
-        ExtendClientAreaToDecorationsHint="True"
+  <Grid RowDefinitions="Auto,Auto,*">
-        ExtendClientAreaChromeHints="NoChrome"
-        SystemDecorations="{OnPlatform Full, Linux=None}">
-  <Grid RowDefinitions="Auto,Auto,*" Margin="{OnPlatform 0, Linux=6}">
-    <!-- Custom window shadow for Linux -->
-    <Border Grid.Row="0" Grid.RowSpan="3"
-            Background="{DynamicResource Brush.Window}"
-            Effect="drop-shadow(0 0 6 #A0000000)"
-            IsVisible="{OnPlatform False, Linux=True}"/>
-
-    <!-- Window BG -->
-    <Border Grid.Row="1" Grid.RowSpan="2"
-            Background="{DynamicResource Brush.Window}"
-            IsVisible="{OnPlatform True, Linux=False}"/>
-    
     <!-- Title bar -->
     <Grid Grid.Row="0" ColumnDefinitions="Auto,*,Auto" Height="30">
       <Border Grid.Column="0" Grid.ColumnSpan="3"
@@ -185,4 +170,4 @@
                    HorizontalAlignment="Center" VerticalAlignment="Center"
                    IsVisible="{Binding IsLoading}"/>
   </Grid>
-</Window>
+</v:ChromelessWindow>

src/Views/Statistics.axaml.cs

@@ -226,7 +226,7 @@ namespace SourceGit.Views
         private int _lastHitIdx = -1;
     }
 
-    public partial class Statistics : Window
+    public partial class Statistics : ChromelessWindow
     {
         public Statistics()
         {