diff --git a/demo/Directory.Build.props b/demo/Directory.Build.props
index 48fa85e..9c43e2b 100644
--- a/demo/Directory.Build.props
+++ b/demo/Directory.Build.props
@@ -2,5 +2,6 @@
   <PropertyGroup>
     <Nullable>enable</Nullable>
     <AvaloniaVersion>11.2.0</AvaloniaVersion>
+    <CommunityToolkitVersion>8.3.2</CommunityToolkitVersion>
   </PropertyGroup>
 </Project>
diff --git a/demo/Semi.Avalonia.Demo.Desktop/Program.cs b/demo/Semi.Avalonia.Demo.Desktop/Program.cs
index e011c45..f6fb44d 100644
--- a/demo/Semi.Avalonia.Demo.Desktop/Program.cs
+++ b/demo/Semi.Avalonia.Demo.Desktop/Program.cs
@@ -16,13 +16,13 @@ class Program
     public static void Main(string[] args) => BuildAvaloniaApp()
         .With(new FontManagerOptions
         {
-            FontFallbacks = new[]
-            {
+            FontFallbacks =
+            [
                 new FontFallback
                 {
                     FontFamily = new FontFamily("Microsoft YaHei")
                 }
-            }
+            ]
         })
         .StartWithClassicDesktopLifetime(args);
 
diff --git a/demo/Semi.Avalonia.Demo/Pages/HeaderedContentControlDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/HeaderedContentControlDemo.axaml
index af62a80..b778b13 100644
--- a/demo/Semi.Avalonia.Demo/Pages/HeaderedContentControlDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/HeaderedContentControlDemo.axaml
@@ -2,7 +2,7 @@
              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"
-             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="1450"
              x:Class="Semi.Avalonia.Demo.Pages.HeaderedContentControlDemo">
     <ScrollViewer>
         <StackPanel HorizontalAlignment="Left" Spacing="20">
@@ -27,12 +27,18 @@
             </WrapPanel>
             <TextBlock>GroupBox Theme</TextBlock>
             <HeaderedContentControl
-                HorizontalAlignment="Left"
                 Theme="{DynamicResource GroupBox}"
-                Header="Semi Design"
-                Width="400"
-                Height="200">
-                <TextBlock TextWrapping="Wrap">Semi Design 是由互娱社区前端团队与 UED 团队共同设计开发并维护的设计系统。设计系统包含设计语言以及一整套可复用的前端组件，帮助设计师与开发者更容易地打造高质量的、用户体验一致的、符合设计规范的 Web 应用。</TextBlock>
+                HorizontalAlignment="Left"
+                MaxWidth="360">
+                <HeaderedContentControl.Header>
+                    <Panel>
+                        <SelectableTextBlock Text="Semi Design" />
+                        <HyperlinkButton HorizontalAlignment="Right" Content="更多" />
+                    </Panel>
+                </HeaderedContentControl.Header>
+                <HeaderedContentControl.Content>
+                    <SelectableTextBlock Text="Semi Design 是由互娱社区前端团队与 UED 团队共同设计开发并维护的设计系统。设计系统包含设计语言以及一整套可复用的前端组件，帮助设计师与开发者更容易地打造高质量的、用户体验一致的、符合设计规范的 Web 应用。" />
+                </HeaderedContentControl.Content>
             </HeaderedContentControl>
         </StackPanel>
     </ScrollViewer>
diff --git a/demo/Semi.Avalonia.Demo/Pages/LabelDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/LabelDemo.axaml
index 5b17250..250c794 100644
--- a/demo/Semi.Avalonia.Demo/Pages/LabelDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/LabelDemo.axaml
@@ -4,7 +4,7 @@
     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"
-    d:DesignHeight="450"
+    d:DesignHeight="800"
     d:DesignWidth="800"
     mc:Ignorable="d">
     <ScrollViewer>
@@ -13,15 +13,13 @@
                 <Style Selector="Label">
                     <Setter Property="Margin" Value="4" />
                 </Style>
+                <Style Selector="Grid > TextBlock">
+                    <Setter Property="VerticalAlignment" Value="Center" />
+                    <Setter Property="Margin" Value="4" />
+                </Style>
             </StackPanel.Styles>
             <ScrollViewer HorizontalScrollBarVisibility="Auto">
                 <StackPanel Orientation="Horizontal">
-                    <StackPanel.Styles>
-                        <Style Selector="Label, TextBlock">
-                            <Setter Property="VerticalAlignment" Value="Center" />
-                            <Setter Property="Margin" Value="4" />
-                        </Style>
-                    </StackPanel.Styles>
                     <HeaderedContentControl
                         Width="400"
                         Height="400"
@@ -32,62 +30,62 @@
                         <Grid
                             VerticalAlignment="Top"
                             ColumnDefinitions="Auto, *"
-                            RowDefinitions="*,*,*,*,*,*,*,*,*,*,*,*">
-                            <TextBlock Grid.Row="1" Grid.Column="0">Classes</TextBlock>
-                            <TextBlock Grid.Row="2" Grid.Column="0">-</TextBlock>
-                            <TextBlock Grid.Row="3" Grid.Column="0">Secondary</TextBlock>
-                            <TextBlock Grid.Row="4" Grid.Column="0">Tertiary</TextBlock>
-                            <TextBlock Grid.Row="5" Grid.Column="0">Quaternary</TextBlock>
-                            <TextBlock Grid.Row="6" Grid.Column="0">Success</TextBlock>
-                            <TextBlock Grid.Row="7" Grid.Column="0">Warning</TextBlock>
-                            <TextBlock Grid.Row="8" Grid.Column="0">Danger</TextBlock>
-                            <TextBlock Grid.Row="9" Grid.Column="0">Mark</TextBlock>
-                            <TextBlock Grid.Row="10" Grid.Column="0">Code</TextBlock>
-                            <Label Grid.Row="2" Grid.Column="1">Text</Label>
+                            RowDefinitions="*,*,*,*,*,*,*,*,*,*,*">
+                            <TextBlock Grid.Row="0"  Grid.Column="0">Classes</TextBlock>
+                            <TextBlock Grid.Row="1" Grid.Column="0">-</TextBlock>
+                            <TextBlock Grid.Row="2" Grid.Column="0">Secondary</TextBlock>
+                            <TextBlock Grid.Row="3" Grid.Column="0">Tertiary</TextBlock>
+                            <TextBlock Grid.Row="4" Grid.Column="0">Quaternary</TextBlock>
+                            <TextBlock Grid.Row="5" Grid.Column="0">Success</TextBlock>
+                            <TextBlock Grid.Row="6" Grid.Column="0">Warning</TextBlock>
+                            <TextBlock Grid.Row="7" Grid.Column="0">Danger</TextBlock>
+                            <TextBlock Grid.Row="8" Grid.Column="0">Mark</TextBlock>
+                            <TextBlock Grid.Row="9" Grid.Column="0">Code</TextBlock>
+                            <Label Grid.Row="1" Grid.Column="1">Text</Label>
                             <Label
-                                Grid.Row="3"
+                                Grid.Row="2"
                                 Grid.Column="1"
                                 Classes="Secondary">
                                 Secondary
                             </Label>
                             <Label
-                                Grid.Row="4"
+                                Grid.Row="3"
                                 Grid.Column="1"
                                 Classes="Tertiary">
                                 Tertiary
                             </Label>
                             <Label
-                                Grid.Row="5"
+                                Grid.Row="4"
                                 Grid.Column="1"
                                 Classes="Quaternary">
                                 Quaternary
                             </Label>
                             <Label
-                                Grid.Row="6"
+                                Grid.Row="5"
                                 Grid.Column="1"
                                 Classes="Success">
                                 Success
                             </Label>
                             <Label
-                                Grid.Row="7"
+                                Grid.Row="6"
                                 Grid.Column="1"
                                 Classes="Warning">
                                 Warning
                             </Label>
                             <Label
-                                Grid.Row="8"
+                                Grid.Row="7"
                                 Grid.Column="1"
                                 Classes="Danger">
                                 Danger
                             </Label>
                             <Label
-                                Grid.Row="9"
+                                Grid.Row="8"
                                 Grid.Column="1"
                                 Classes="Mark">
                                 Default Mark
                             </Label>
                             <Label
-                                Grid.Row="10"
+                                Grid.Row="9"
                                 Grid.Column="1"
                                 Classes="Code">
                                 Code
@@ -104,51 +102,51 @@
                         <Grid
                             VerticalAlignment="Top"
                             ColumnDefinitions="Auto, *"
-                            RowDefinitions="*,*,*,*,*,*,*,*">
-                            <TextBlock Grid.Row="1" Grid.Column="0">Classes</TextBlock>
-                            <TextBlock Grid.Row="2" Grid.Column="0">H1</TextBlock>
-                            <TextBlock Grid.Row="3" Grid.Column="0">H2</TextBlock>
-                            <TextBlock Grid.Row="4" Grid.Column="0">H3</TextBlock>
-                            <TextBlock Grid.Row="5" Grid.Column="0">H4</TextBlock>
-                            <TextBlock Grid.Row="6" Grid.Column="0">H5</TextBlock>
-                            <TextBlock Grid.Row="7" Grid.Column="0">H6</TextBlock>
+                            RowDefinitions="*,*,*,*,*,*,*">
+                            <TextBlock Grid.Row="0" Grid.Column="0">Classes</TextBlock>
+                            <TextBlock Grid.Row="1" Grid.Column="0">H1</TextBlock>
+                            <TextBlock Grid.Row="2" Grid.Column="0">H2</TextBlock>
+                            <TextBlock Grid.Row="3" Grid.Column="0">H3</TextBlock>
+                            <TextBlock Grid.Row="4" Grid.Column="0">H4</TextBlock>
+                            <TextBlock Grid.Row="5" Grid.Column="0">H5</TextBlock>
+                            <TextBlock Grid.Row="6" Grid.Column="0">H6</TextBlock>
                             <Label
-                                Grid.Row="2"
+                                Grid.Row="1"
                                 Grid.Column="1"
                                 Classes="H1"
                                 Theme="{StaticResource TitleLabel}">
                                 Header 1
                             </Label>
                             <Label
-                                Grid.Row="3"
+                                Grid.Row="2"
                                 Grid.Column="1"
                                 Classes="H2"
                                 Theme="{StaticResource TitleLabel}">
                                 Header 2
                             </Label>
                             <Label
-                                Grid.Row="4"
+                                Grid.Row="3"
                                 Grid.Column="1"
                                 Classes="H3"
                                 Theme="{StaticResource TitleLabel}">
                                 Header 3
                             </Label>
                             <Label
-                                Grid.Row="5"
+                                Grid.Row="4"
                                 Grid.Column="1"
                                 Classes="H4"
                                 Theme="{StaticResource TitleLabel}">
                                 Header 4
                             </Label>
                             <Label
-                                Grid.Row="6"
+                                Grid.Row="5"
                                 Grid.Column="1"
                                 Classes="H5"
                                 Theme="{StaticResource TitleLabel}">
                                 Header 5
                             </Label>
                             <Label
-                                Grid.Row="7"
+                                Grid.Row="6"
                                 Grid.Column="1"
                                 Classes="H6"
                                 Theme="{StaticResource TitleLabel}">
diff --git a/demo/Semi.Avalonia.Demo/Pages/SelectableTextBlock.axaml b/demo/Semi.Avalonia.Demo/Pages/SelectableTextBlock.axaml
index abeb7f3..c353ef3 100644
--- a/demo/Semi.Avalonia.Demo/Pages/SelectableTextBlock.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/SelectableTextBlock.axaml
@@ -4,13 +4,13 @@
     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"
-    d:DesignHeight="450"
+    d:DesignHeight="600"
     d:DesignWidth="800"
     mc:Ignorable="d">
     <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
         <StackPanel Orientation="Horizontal">
             <StackPanel.Styles>
-                <Style Selector="SelectableTextBlock">
+                <Style Selector="Grid > SelectableTextBlock">
                     <Setter Property="VerticalAlignment" Value="Center" />
                     <Setter Property="Margin" Value="4" />
                 </Style>
@@ -25,70 +25,76 @@
                 <Grid
                     VerticalAlignment="Top"
                     ColumnDefinitions="Auto, *"
-                    RowDefinitions="*,*,*,*,*,*,*,*,*,*,*,*">
-                    <SelectableTextBlock Grid.Row="1" Grid.Column="0">Classes</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="2" Grid.Column="0">-</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="3" Grid.Column="0">Secondary</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="4" Grid.Column="0">Tertiary</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="5" Grid.Column="0">Quaternary</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="6" Grid.Column="0">Success</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="7" Grid.Column="0">Warning</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="8" Grid.Column="0">Danger</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="9" Grid.Column="0">Mark</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="10" Grid.Column="0">Underline</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="11" Grid.Column="0">Delete</SelectableTextBlock>
+                    RowDefinitions="*,*,*,*,*,*,*,*,*,*,*">
+                    <Grid.Styles>
+                        <Style Selector="SelectableTextBlock">
+                            <Setter Property="VerticalAlignment" Value="Center" />
+                            <Setter Property="Margin" Value="4" />
+                        </Style>
+                    </Grid.Styles>
+                    <SelectableTextBlock Grid.Row="0" Grid.Column="0">Classes</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="1" Grid.Column="0">-</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="2" Grid.Column="0">Secondary</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="3" Grid.Column="0">Tertiary</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="4" Grid.Column="0">Quaternary</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="5" Grid.Column="0">Success</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="6" Grid.Column="0">Warning</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="7" Grid.Column="0">Danger</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="8" Grid.Column="0">Mark</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="9" Grid.Column="0">Underline</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="10" Grid.Column="0">Delete</SelectableTextBlock>
 
-                    <SelectableTextBlock Grid.Row="2" Grid.Column="1">Text</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="1" Grid.Column="1">Text</SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="3"
+                        Grid.Row="2"
                         Grid.Column="1"
                         Classes="Secondary">
                         Secondary
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="4"
+                        Grid.Row="3"
                         Grid.Column="1"
                         Classes="Tertiary">
                         Tertiary
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="5"
+                        Grid.Row="4"
                         Grid.Column="1"
                         Classes="Quaternary">
                         Quaternary
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="6"
+                        Grid.Row="5"
                         Grid.Column="1"
                         Classes="Success">
                         Success
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="7"
+                        Grid.Row="6"
                         Grid.Column="1"
                         Classes="Warning">
                         Warning
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="8"
+                        Grid.Row="7"
                         Grid.Column="1"
                         Classes="Danger">
                         Danger
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="9"
+                        Grid.Row="8"
                         Grid.Column="1"
                         Classes="Mark">
                         Default Mark
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="10"
+                        Grid.Row="9"
                         Grid.Column="1"
                         Classes="Underline">
                         Underline
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="11"
+                        Grid.Row="10"
                         Grid.Column="1"
                         Classes="Delete">
                         Delete
@@ -104,53 +110,52 @@
                 Theme="{DynamicResource GroupBox}">
                 <Grid
                     VerticalAlignment="Top"
-                    Background="{Binding}"
                     ColumnDefinitions="Auto, *"
-                    RowDefinitions="*,*,*,*,*,*,*,*">
-                    <SelectableTextBlock Grid.Row="1" Grid.Column="0">Classes</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="2" Grid.Column="0">H1</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="3" Grid.Column="0">H2</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="4" Grid.Column="0">H3</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="5" Grid.Column="0">H4</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="6" Grid.Column="0">H5</SelectableTextBlock>
-                    <SelectableTextBlock Grid.Row="7" Grid.Column="0">H6</SelectableTextBlock>
+                    RowDefinitions="*,*,*,*,*,*,*">
+                    <SelectableTextBlock Grid.Row="0" Grid.Column="0">Classes</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="1" Grid.Column="0">H1</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="2" Grid.Column="0">H2</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="3" Grid.Column="0">H3</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="4" Grid.Column="0">H4</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="5" Grid.Column="0">H5</SelectableTextBlock>
+                    <SelectableTextBlock Grid.Row="6" Grid.Column="0">H6</SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="2"
+                        Grid.Row="1"
                         Grid.Column="1"
                         Classes="H1"
                         Theme="{StaticResource TitleSelectableTextBlock}">
                         Header 1
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="3"
+                        Grid.Row="2"
                         Grid.Column="1"
                         Classes="H2"
                         Theme="{StaticResource TitleSelectableTextBlock}">
                         Header 2
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="4"
+                        Grid.Row="3"
                         Grid.Column="1"
                         Classes="H3"
                         Theme="{StaticResource TitleSelectableTextBlock}">
                         Header 3
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="5"
+                        Grid.Row="4"
                         Grid.Column="1"
                         Classes="H4"
                         Theme="{StaticResource TitleSelectableTextBlock}">
                         Header 4
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="6"
+                        Grid.Row="5"
                         Grid.Column="1"
                         Classes="H5"
                         Theme="{StaticResource TitleSelectableTextBlock}">
                         Header 5
                     </SelectableTextBlock>
                     <SelectableTextBlock
-                        Grid.Row="7"
+                        Grid.Row="6"
                         Grid.Column="1"
                         Classes="H6"
                         Theme="{StaticResource TitleSelectableTextBlock}">
diff --git a/demo/Semi.Avalonia.Demo/Pages/TextBlockDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/TextBlockDemo.axaml
index 5702698..04f0fe3 100644
--- a/demo/Semi.Avalonia.Demo/Pages/TextBlockDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/TextBlockDemo.axaml
@@ -10,7 +10,7 @@
     <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
         <StackPanel Orientation="Horizontal">
             <StackPanel.Styles>
-                <Style Selector="TextBlock">
+                <Style Selector="Grid > TextBlock">
                     <Setter Property="VerticalAlignment" Value="Center" />
                     <Setter Property="Margin" Value="4" />
                 </Style>
@@ -25,70 +25,70 @@
                 <Grid
                     VerticalAlignment="Top"
                     ColumnDefinitions="Auto, *"
-                    RowDefinitions="*,*,*,*,*,*,*,*,*,*,*,*">
-                    <TextBlock Grid.Row="1" Grid.Column="0">Classes</TextBlock>
-                    <TextBlock Grid.Row="2" Grid.Column="0">-</TextBlock>
-                    <TextBlock Grid.Row="3" Grid.Column="0">Secondary</TextBlock>
-                    <TextBlock Grid.Row="4" Grid.Column="0">Tertiary</TextBlock>
-                    <TextBlock Grid.Row="5" Grid.Column="0">Quaternary</TextBlock>
-                    <TextBlock Grid.Row="6" Grid.Column="0">Success</TextBlock>
-                    <TextBlock Grid.Row="7" Grid.Column="0">Warning</TextBlock>
-                    <TextBlock Grid.Row="8" Grid.Column="0">Danger</TextBlock>
-                    <TextBlock Grid.Row="9" Grid.Column="0">Mark</TextBlock>
-                    <TextBlock Grid.Row="10" Grid.Column="0">Underline</TextBlock>
-                    <TextBlock Grid.Row="11" Grid.Column="0">Delete</TextBlock>
+                    RowDefinitions="*,*,*,*,*,*,*,*,*,*,*">
+                    <TextBlock Grid.Row="0" Grid.Column="0">Classes</TextBlock>
+                    <TextBlock Grid.Row="1" Grid.Column="0">-</TextBlock>
+                    <TextBlock Grid.Row="2" Grid.Column="0">Secondary</TextBlock>
+                    <TextBlock Grid.Row="3" Grid.Column="0">Tertiary</TextBlock>
+                    <TextBlock Grid.Row="4" Grid.Column="0">Quaternary</TextBlock>
+                    <TextBlock Grid.Row="5" Grid.Column="0">Success</TextBlock>
+                    <TextBlock Grid.Row="6" Grid.Column="0">Warning</TextBlock>
+                    <TextBlock Grid.Row="7" Grid.Column="0">Danger</TextBlock>
+                    <TextBlock Grid.Row="8" Grid.Column="0">Mark</TextBlock>
+                    <TextBlock Grid.Row="9" Grid.Column="0">Underline</TextBlock>
+                    <TextBlock Grid.Row="10" Grid.Column="0">Delete</TextBlock>
 
-                    <TextBlock Grid.Row="2" Grid.Column="1">Text</TextBlock>
+                    <TextBlock Grid.Row="1" Grid.Column="1">Text</TextBlock>
                     <TextBlock
-                        Grid.Row="3"
+                        Grid.Row="2"
                         Grid.Column="1"
                         Classes="Secondary">
                         Secondary
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="4"
+                        Grid.Row="3"
                         Grid.Column="1"
                         Classes="Tertiary">
                         Tertiary
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="5"
+                        Grid.Row="4"
                         Grid.Column="1"
                         Classes="Quaternary">
                         Quaternary
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="6"
+                        Grid.Row="5"
                         Grid.Column="1"
                         Classes="Success">
                         Success
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="7"
+                        Grid.Row="6"
                         Grid.Column="1"
                         Classes="Warning">
                         Warning
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="8"
+                        Grid.Row="7"
                         Grid.Column="1"
                         Classes="Danger">
                         Danger
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="9"
+                        Grid.Row="8"
                         Grid.Column="1"
                         Classes="Mark">
                         Default Mark
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="10"
+                        Grid.Row="9"
                         Grid.Column="1"
                         Classes="Underline">
                         Underline
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="11"
+                        Grid.Row="10"
                         Grid.Column="1"
                         Classes="Delete">
                         Delete
@@ -105,58 +105,57 @@
                 <Grid
                     VerticalAlignment="Top"
                     ColumnDefinitions="Auto, *"
-                    RowDefinitions="*,*,*,*,*,*,*,*">
-                    <TextBlock Grid.Row="1" Grid.Column="0">Classes</TextBlock>
-                    <TextBlock Grid.Row="2" Grid.Column="0">H1</TextBlock>
-                    <TextBlock Grid.Row="3" Grid.Column="0">H2</TextBlock>
-                    <TextBlock Grid.Row="4" Grid.Column="0">H3</TextBlock>
-                    <TextBlock Grid.Row="5" Grid.Column="0">H4</TextBlock>
-                    <TextBlock Grid.Row="6" Grid.Column="0">H5</TextBlock>
-                    <TextBlock Grid.Row="7" Grid.Column="0">H6</TextBlock>
+                    RowDefinitions="*,*,*,*,*,*,*">
+                    <TextBlock Grid.Row="0" Grid.Column="0">Classes</TextBlock>
+                    <TextBlock Grid.Row="1" Grid.Column="0">H1</TextBlock>
+                    <TextBlock Grid.Row="2" Grid.Column="0">H2</TextBlock>
+                    <TextBlock Grid.Row="3" Grid.Column="0">H3</TextBlock>
+                    <TextBlock Grid.Row="4" Grid.Column="0">H4</TextBlock>
+                    <TextBlock Grid.Row="5" Grid.Column="0">H5</TextBlock>
+                    <TextBlock Grid.Row="6" Grid.Column="0">H6</TextBlock>
                     <TextBlock
-                        Grid.Row="2"
+                        Grid.Row="1"
                         Grid.Column="1"
                         Classes="H1"
                         Theme="{StaticResource TitleTextBlock}">
                         Header 1
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="3"
+                        Grid.Row="2"
                         Grid.Column="1"
                         Classes="H2"
                         Theme="{StaticResource TitleTextBlock}">
                         Header 2
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="4"
+                        Grid.Row="3"
                         Grid.Column="1"
                         Classes="H3"
                         Theme="{StaticResource TitleTextBlock}">
                         Header 3
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="5"
+                        Grid.Row="4"
                         Grid.Column="1"
                         Classes="H4"
                         Theme="{StaticResource TitleTextBlock}">
                         Header 4
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="6"
+                        Grid.Row="5"
                         Grid.Column="1"
                         Classes="H5"
                         Theme="{StaticResource TitleTextBlock}">
                         Header 5
                     </TextBlock>
                     <TextBlock
-                        Grid.Row="7"
+                        Grid.Row="6"
                         Grid.Column="1"
                         Classes="H6"
                         Theme="{StaticResource TitleTextBlock}">
                         Header 6
                     </TextBlock>
                 </Grid>
-
             </HeaderedContentControl>
         </StackPanel>
     </ScrollViewer>
diff --git a/demo/Semi.Avalonia.Demo/Semi.Avalonia.Demo.csproj b/demo/Semi.Avalonia.Demo/Semi.Avalonia.Demo.csproj
index cb9a679..9e5c54a 100644
--- a/demo/Semi.Avalonia.Demo/Semi.Avalonia.Demo.csproj
+++ b/demo/Semi.Avalonia.Demo/Semi.Avalonia.Demo.csproj
@@ -14,7 +14,7 @@
         <PackageReference Include="Avalonia.Controls.DataGrid" Version="$(AvaloniaVersion)" />
         <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
         <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="$(AvaloniaVersion)" />
-        <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.2" />
+        <PackageReference Include="CommunityToolkit.Mvvm" Version="$(CommunityToolkitVersion)" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/demo/Semi.Avalonia.TreeDataGrid.Demo/Program.cs b/demo/Semi.Avalonia.TreeDataGrid.Demo/Program.cs
index b71cf5e..b0b60d9 100644
--- a/demo/Semi.Avalonia.TreeDataGrid.Demo/Program.cs
+++ b/demo/Semi.Avalonia.TreeDataGrid.Demo/Program.cs
@@ -1,5 +1,6 @@
 using Avalonia;
 using System;
+using Avalonia.Media;
 
 namespace Semi.Avalonia.TreeDataGrid.Demo;
 
@@ -10,12 +11,21 @@ class Program
     // yet and stuff might break.
     [STAThread]
     public static void Main(string[] args) => BuildAvaloniaApp()
+        .With(new FontManagerOptions
+        {
+            FontFallbacks =
+            [
+                new FontFallback
+                {
+                    FontFamily = new FontFamily("Microsoft YaHei")
+                }
+            ]
+        })
         .StartWithClassicDesktopLifetime(args);
 
     // Avalonia configuration, don't remove; also used by visual designer.
     public static AppBuilder BuildAvaloniaApp()
         => AppBuilder.Configure<App>()
             .UsePlatformDetect()
-            .WithInterFont()
             .LogToTrace();
 }
\ No newline at end of file
diff --git a/demo/Semi.Avalonia.TreeDataGrid.Demo/Semi.Avalonia.TreeDataGrid.Demo.csproj b/demo/Semi.Avalonia.TreeDataGrid.Demo/Semi.Avalonia.TreeDataGrid.Demo.csproj
index 59312af..9327fae 100644
--- a/demo/Semi.Avalonia.TreeDataGrid.Demo/Semi.Avalonia.TreeDataGrid.Demo.csproj
+++ b/demo/Semi.Avalonia.TreeDataGrid.Demo/Semi.Avalonia.TreeDataGrid.Demo.csproj
@@ -1,28 +1,29 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <OutputType>WinExe</OutputType>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <Nullable>enable</Nullable>
         <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+        <LangVersion>latest</LangVersion>
         <ApplicationManifest>app.manifest</ApplicationManifest>
         <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+        <!-- Uncomment below to enable Native AOT compilation-->
+        <!--<PublishAot>true</PublishAot>-->
+        <!--<IncludeNativeLibrariesForSelfExtract>true</IncludeNativeLibrariesForSelfExtract>-->
     </PropertyGroup>
 
     <Import Project="../Directory.Build.props" />
-    
+
     <ItemGroup>
         <PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
         <PackageReference Include="Avalonia.Desktop" Version="$(AvaloniaVersion)" />
-        <PackageReference Include="Avalonia.Themes.Fluent" Version="$(AvaloniaVersion)" />
-        <PackageReference Include="Avalonia.Fonts.Inter" Version="$(AvaloniaVersion)" />
         <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
         <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="$(AvaloniaVersion)" />
-        <PackageReference Include="CommunityToolkit.Mvvm" Version="8.2.1" />
+        <PackageReference Include="CommunityToolkit.Mvvm" Version="$(CommunityToolkitVersion)" />
     </ItemGroup>
 
-
     <ItemGroup>
-      <ProjectReference Include="..\..\src\Semi.Avalonia.TreeDataGrid\Semi.Avalonia.TreeDataGrid.csproj" />
-      <ProjectReference Include="..\..\src\Semi.Avalonia\Semi.Avalonia.csproj" />
+        <ProjectReference Include="..\..\src\Semi.Avalonia.TreeDataGrid\Semi.Avalonia.TreeDataGrid.csproj" />
+        <ProjectReference Include="..\..\src\Semi.Avalonia\Semi.Avalonia.csproj" />
     </ItemGroup>
 </Project>
diff --git a/src/Semi.Avalonia.TreeDataGrid/Index.axaml b/src/Semi.Avalonia.TreeDataGrid/Index.axaml
index f67ed3c..4165bb7 100644
--- a/src/Semi.Avalonia.TreeDataGrid/Index.axaml
+++ b/src/Semi.Avalonia.TreeDataGrid/Index.axaml
@@ -2,8 +2,8 @@
     <Styles.Resources>
         <ResourceDictionary>
             <ResourceDictionary.ThemeDictionaries>
-                <MergeResourceInclude x:Key="Default" Source="avares://Semi.Avalonia.TreeDataGrid/Light.axaml" />
-                <MergeResourceInclude x:Key="Dark" Source="avares://Semi.Avalonia.TreeDataGrid/Dark.axaml" />
+                <ResourceInclude x:Key="Default" Source="avares://Semi.Avalonia.TreeDataGrid/Light.axaml" />
+                <ResourceInclude x:Key="Dark" Source="avares://Semi.Avalonia.TreeDataGrid/Dark.axaml" />
             </ResourceDictionary.ThemeDictionaries>
             <ResourceDictionary.MergedDictionaries>
                 <ResourceInclude Source="avares://Semi.Avalonia.TreeDataGrid/TreeDataGrid.axaml" />
diff --git a/src/Semi.Avalonia/Controls/ComboBox.axaml b/src/Semi.Avalonia/Controls/ComboBox.axaml
index 6ddd0f3..760380a 100644
--- a/src/Semi.Avalonia/Controls/ComboBox.axaml
+++ b/src/Semi.Avalonia/Controls/ComboBox.axaml
@@ -30,11 +30,11 @@
     <ControlTheme x:Key="{x:Type ComboBox}" TargetType="ComboBox">
         <Setter Property="Padding" Value="{DynamicResource ComboBoxSelectorDefaultPadding}" />
         <Setter Property="FocusAdorner" Value="{x:Null}" />
-        <Setter Property="MaxDropDownHeight" Value="504" />
+        <Setter Property="MaxDropDownHeight" Value="{DynamicResource ComboBoxPopupMaxDropDownHeight}" />
         <Setter Property="Background" Value="{DynamicResource ComboBoxSelectorBackground}" />
         <Setter Property="BorderBrush" Value="{DynamicResource ComboBoxSelectorBorderBrush}" />
         <Setter Property="BackgroundSizing" Value="OuterBorderEdge" />
-        <Setter Property="BorderThickness" Value="1" />
+        <Setter Property="BorderThickness" Value="{DynamicResource ComboBoxSelectorThickness}" />
         <Setter Property="Cursor" Value="Hand" />
         <Setter Property="CornerRadius" Value="{DynamicResource ComboBoxSelectorCornerRadius}" />
         <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled" />
@@ -66,8 +66,7 @@
                             VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                             TextTrimming="CharacterEllipsis"
                             Foreground="{TemplateBinding Foreground}"
-                            IsVisible="{TemplateBinding SelectionBoxItem,
-                                                        Converter={x:Static ObjectConverters.IsNull}}"
+                            IsVisible="{TemplateBinding SelectionBoxItem,Converter={x:Static ObjectConverters.IsNull}}"
                             Opacity="0.3"
                             Text="{TemplateBinding PlaceholderText}" />
                         <ContentPresenter
@@ -81,27 +80,19 @@
                         <Button
                             Name="ClearButton"
                             Grid.Column="1"
-                            Margin="0,0,8,0"
+                            Margin="{DynamicResource ComboBoxClearButtonMargin}"
                             Command="{Binding $parent[ComboBox].Clear}"
                             Content="{DynamicResource IconButtonClearData}"
                             Focusable="False"
                             IsVisible="False"
                             Theme="{DynamicResource InnerIconButton}" />
-                        <Border
-                            Name="DropDownOverlay"
-                            Grid.Column="1"
-                            Width="30"
-                            Margin="0,1,1,1"
-                            HorizontalAlignment="Right"
-                            Background="Transparent"
-                            IsVisible="False" />
 
                         <PathIcon
                             Name="DropDownGlyph"
                             Grid.Column="1"
-                            Width="12"
-                            Height="12"
-                            Margin="0,0,12,0"
+                            Width="{DynamicResource ComboBoxIconWidth}"
+                            Height="{DynamicResource ComboBoxIconHeight}"
+                            Margin="{DynamicResource ComboBoxIconMargin}"
                             Data="{DynamicResource ComboBoxIcon}"
                             Foreground="{DynamicResource ComboBoxIconDefaultForeground}"
                             IsHitTestVisible="False"
@@ -120,21 +111,20 @@
                             WindowManagerAddShadowHint="False">
                             <Border
                                 Name="PopupBorder"
-                                Margin="0,4"
                                 HorizontalAlignment="Stretch"
+                                Margin="{DynamicResource ComboBoxPopupBorderMargin}"
                                 Background="{DynamicResource ComboBoxPopupBackground}"
                                 BorderBrush="{DynamicResource ComboBoxPopupBorderBrush}"
                                 BorderThickness="{DynamicResource ComboBoxPopupBorderThickness}"
                                 BoxShadow="{DynamicResource ComboBoxPopupBoxShadow}"
-                                ClipToBounds="True"
-                                CornerRadius="6">
+                                CornerRadius="{DynamicResource ComboBoxPopupBoxCornerRadius}"
+                                ClipToBounds="True">
                                 <ScrollViewer
                                     HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
-                                    IsDeferredScrollingEnabled="{TemplateBinding (ScrollViewer.IsDeferredScrollingEnabled)}"
+                                    IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}"
                                     VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}">
                                     <ItemsPresenter
                                         Name="PART_ItemsPresenter"
-                                        Margin="{DynamicResource ComboBoxDropdownContentMargin}"
                                         ItemsPanel="{TemplateBinding ItemsPanel}" />
                                 </ScrollViewer>
                             </Border>
diff --git a/src/Semi.Avalonia/Controls/DatePicker.axaml b/src/Semi.Avalonia/Controls/DatePicker.axaml
index 50595ee..ec4716c 100644
--- a/src/Semi.Avalonia/Controls/DatePicker.axaml
+++ b/src/Semi.Avalonia/Controls/DatePicker.axaml
@@ -22,11 +22,12 @@
                     BorderBrush="{TemplateBinding BorderBrush}"
                     BorderThickness="{TemplateBinding BorderThickness}"
                     BoxShadow="{DynamicResource DateTimePickerFlyoutBoxShadow}"
-                    CornerRadius="{TemplateBinding CornerRadius}">
+                    CornerRadius="{TemplateBinding CornerRadius}"
+                    ClipToBounds="True">
                     <Grid Name="ContentPanel" RowDefinitions="*,Auto">
                         <Grid Name="PART_PickerContainer">
                             <Grid.Styles>
-                                <Style Selector="DateTimePickerPanel &gt; ListBoxItem">
+                                <Style Selector="DateTimePickerPanel > ListBoxItem">
                                     <Setter Property="Theme" Value="{StaticResource DateTimePickerItem}" />
                                 </Style>
                             </Grid.Styles>
@@ -108,6 +109,7 @@
                                     Data="{DynamicResource DateTimePickerDismissGlyph}" />
                             </Button>
                             <Rectangle
+                                Grid.Column="0"
                                 Grid.ColumnSpan="2"
                                 Height="1"
                                 VerticalAlignment="Top"
@@ -177,6 +179,7 @@
                                     <TextBlock
                                         Name="PART_MonthTextBlock"
                                         Padding="12,0"
+                                        HorizontalAlignment="Center"
                                         VerticalAlignment="Center"
                                         FontFamily="{TemplateBinding FontFamily}"
                                         FontSize="{TemplateBinding FontSize}"
diff --git a/src/Semi.Avalonia/Controls/DateTimePickerShared.axaml b/src/Semi.Avalonia/Controls/DateTimePickerShared.axaml
index 4db8cea..b9440fb 100644
--- a/src/Semi.Avalonia/Controls/DateTimePickerShared.axaml
+++ b/src/Semi.Avalonia/Controls/DateTimePickerShared.axaml
@@ -65,10 +65,6 @@
         <Style Selector="^:selected">
             <Setter Property="IsHitTestVisible" Value="False" />
         </Style>
-        <Style Selector="^.MonthItem">
-            <Setter Property="Padding" Value="{DynamicResource DatePickerFlyoutPresenterMonthPadding}" />
-            <Setter Property="HorizontalContentAlignment" Value="Left" />
-        </Style>
     </ControlTheme>
 
     <!--  This is used for both the accept/dismiss & buttons in the presenter  -->
diff --git a/src/Semi.Avalonia/Controls/HeaderedContentControl.axaml b/src/Semi.Avalonia/Controls/HeaderedContentControl.axaml
index e70aeee..19dad7c 100644
--- a/src/Semi.Avalonia/Controls/HeaderedContentControl.axaml
+++ b/src/Semi.Avalonia/Controls/HeaderedContentControl.axaml
@@ -1,7 +1,31 @@
 <ResourceDictionary
     xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:converters="clr-namespace:Avalonia.Controls.Converters;assembly=Avalonia.Controls"
     x:CompileBindings="True">
+    <Design.PreviewWith>
+        <StackPanel Spacing="20">
+            <HeaderedContentControl
+                Theme="{DynamicResource GroupBox}"
+                Header="Header" />
+            <HeaderedContentControl
+                Theme="{DynamicResource GroupBox}"
+                Content="Content" />
+            <HeaderedContentControl
+                Theme="{DynamicResource GroupBox}"
+                MaxWidth="360"
+                Content="Semi Design 是由互娱社区前端团队与 UED 团队共同设计开发并维护的设计系统。设计系统包含设计语言以及一整套可复用的前端组件，帮助设计师与开发者更容易地打造高质量的、用户体验一致的、符合设计规范的 Web 应用。">
+                <HeaderedContentControl.Header>
+                    <Panel>
+                        <SelectableTextBlock Text="Semi Design" />
+                        <HyperlinkButton HorizontalAlignment="Right" Content="更多" />
+                    </Panel>
+                </HeaderedContentControl.Header>
+            </HeaderedContentControl>
+        </StackPanel>
+    </Design.PreviewWith>
+    <converters:MarginMultiplierConverter x:Key="SeparatorBorderMultiplier" Top="True" Indent="1" />
+
     <ControlTheme x:Key="{x:Type HeaderedContentControl}" TargetType="HeaderedContentControl">
         <Setter Property="Padding" Value="3" />
         <Setter Property="Template">
@@ -12,31 +36,31 @@
                     CornerRadius="{TemplateBinding CornerRadius}"
                     Background="{TemplateBinding Background}"
                     Padding="{TemplateBinding Padding}">
-                    <Grid RowDefinitions="auto *">
+                    <Grid RowDefinitions="Auto,*">
                         <ContentPresenter
                             Name="PART_HeaderPresenter"
+                            Grid.Row="0"
                             Content="{TemplateBinding Header}"
-                            RecognizesAccessKey="True"
                             ContentTemplate="{TemplateBinding HeaderTemplate}"
+                            RecognizesAccessKey="True"
                             HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                             VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                             FontSize="{TemplateBinding FontSize}"
                             FontWeight="{TemplateBinding FontWeight}"
                             FontFamily="{TemplateBinding FontFamily}"
-                            FontStyle="{TemplateBinding FontStyle}"
-                            Grid.Row="0" />
+                            FontStyle="{TemplateBinding FontStyle}" />
                         <ContentPresenter
                             Name="PART_ContentPresenter"
+                            Grid.Row="1"
                             ContentTemplate="{TemplateBinding ContentTemplate}"
                             Content="{TemplateBinding Content}"
                             RecognizesAccessKey="True"
-                            VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                             HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
+                            VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                             FontSize="{TemplateBinding FontSize}"
                             FontWeight="{TemplateBinding FontWeight}"
                             FontFamily="{TemplateBinding FontFamily}"
-                            FontStyle="{TemplateBinding FontStyle}"
-                            Grid.Row="1" />
+                            FontStyle="{TemplateBinding FontStyle}" />
                     </Grid>
                 </Border>
             </ControlTemplate>
@@ -44,42 +68,46 @@
     </ControlTheme>
 
     <ControlTheme x:Key="GroupBox" TargetType="HeaderedContentControl">
-        <Setter Property="Background" Value="{DynamicResource HeaderedContentControlDefaultBackground}" />
-        <Setter Property="BorderThickness" Value="1" />
-        <Setter Property="BorderBrush" Value="{DynamicResource HeaderedContentControlDefaultBorderBrush}" />
+        <Setter Property="Background" Value="{DynamicResource HeaderedContentControlBackground}" />
+        <Setter Property="BorderBrush" Value="{DynamicResource HeaderedContentControlBorderBrush}" />
+        <Setter Property="BorderThickness" Value="{DynamicResource HeaderedContentControlBorderThickness}" />
         <Setter Property="CornerRadius" Value="{DynamicResource HeaderedContentControlCornerRadius}" />
-        <Setter Property="HorizontalAlignment" Value="Stretch" />
-        <Setter Property="HorizontalContentAlignment" Value="Left" />
-        <Setter Property="VerticalContentAlignment" Value="Stretch" />
         <Setter Property="Template">
             <ControlTemplate TargetType="HeaderedContentControl">
                 <Border
-                    HorizontalAlignment="Stretch"
-                    VerticalAlignment="Stretch"
-                    Width="{TemplateBinding Width}"
-                    Height="{TemplateBinding Height}"
                     Background="{TemplateBinding Background}"
                     BorderBrush="{TemplateBinding BorderBrush}"
-                    CornerRadius="{TemplateBinding CornerRadius}"
-                    BorderThickness="{TemplateBinding BorderThickness}">
+                    BorderThickness="{TemplateBinding BorderThickness}"
+                    CornerRadius="{TemplateBinding CornerRadius}">
                     <Grid RowDefinitions="Auto,Auto,Auto">
                         <ContentPresenter
+                            Name="PART_HeaderPresenter"
                             Grid.Row="0"
-                            FontWeight="Bold"
-                            HorizontalAlignment="Left"
-                            VerticalAlignment="Stretch"
+                            Padding="{DynamicResource HeaderedContentControlHeaderPadding}"
+                            FontWeight="{DynamicResource HeaderedContentControlHeaderFontWeight}"
+                            IsVisible="{TemplateBinding Header,Converter={x:Static ObjectConverters.IsNotNull}}"
                             Content="{TemplateBinding Header}"
-                            ContentTemplate="{TemplateBinding HeaderTemplate}"
-                            Margin="16" />
-                        <Rectangle
+                            ContentTemplate="{TemplateBinding HeaderTemplate}" />
+                        <Border
+                            Name="SeparatorBorder"
                             Grid.Row="1"
-                            Fill="{TemplateBinding BorderBrush}"
-                            Height="1" />
+                            BorderBrush="{TemplateBinding BorderBrush}"
+                            BorderThickness="{TemplateBinding BorderThickness, Converter={StaticResource SeparatorBorderMultiplier}}">
+                            <Border.IsVisible>
+                                <MultiBinding Converter="{x:Static BoolConverters.And}">
+                                    <TemplateBinding Property="Header" Converter="{x:Static ObjectConverters.IsNotNull}" />
+                                    <TemplateBinding Property="Content" Converter="{x:Static ObjectConverters.IsNotNull}" />
+                                </MultiBinding>
+                            </Border.IsVisible>
+                        </Border>
                         <ContentPresenter
+                            Name="PART_ContentPresenter"
                             Grid.Row="2"
+                            IsVisible="{TemplateBinding Content,Converter={x:Static ObjectConverters.IsNotNull}}"
+                            Padding="{DynamicResource HeaderedContentControlContentPadding}"
                             Content="{TemplateBinding Content}"
                             ContentTemplate="{TemplateBinding ContentTemplate}"
-                            Margin="16" />
+                            TextWrapping="Wrap" />
                     </Grid>
                 </Border>
             </ControlTemplate>
diff --git a/src/Semi.Avalonia/Controls/ScrollViewer.axaml b/src/Semi.Avalonia/Controls/ScrollViewer.axaml
index e68d344..431a776 100644
--- a/src/Semi.Avalonia/Controls/ScrollViewer.axaml
+++ b/src/Semi.Avalonia/Controls/ScrollViewer.axaml
@@ -205,13 +205,13 @@
             <Setter Property="MinHeight" Value="{DynamicResource ScrollBarThickness}" />
             <Setter Property="Width" Value="{DynamicResource ScrollBarThumbThickness}" />
         </Style>
-        <Style Selector="^ /template/ RepeatButton &gt; PathIcon">
+        <Style Selector="^ /template/ RepeatButton > PathIcon">
             <Setter Property="Foreground" Value="{DynamicResource ScrollBarButtonDefaultForeground}" />
         </Style>
-        <Style Selector="^ /template/ RepeatButton:pointerover &gt; PathIcon">
+        <Style Selector="^ /template/ RepeatButton:pointerover > PathIcon">
             <Setter Property="Foreground" Value="{DynamicResource ScrollBarButtonPointeroverForeground}" />
         </Style>
-        <Style Selector="^ /template/ RepeatButton:pressed &gt; PathIcon">
+        <Style Selector="^ /template/ RepeatButton:pressed > PathIcon">
             <Setter Property="RenderTransform" Value="scale(0.92)" />
         </Style>
 
@@ -346,11 +346,11 @@
                 </DockPanel>
             </ControlTemplate>
         </Setter>
-        <Style Selector="^ /template/ RepeatButton &gt; Path">
+        <Style Selector="^ /template/ RepeatButton > Path">
             <Setter Property="Fill" Value="{DynamicResource ColorScrollBarButtonDefaultForeground}" />
         </Style>
 
-        <Style Selector="^ /template/ RepeatButton:pointerover &gt; Path">
+        <Style Selector="^ /template/ RepeatButton:pointerover > Path">
             <Setter Property="Fill" Value="{DynamicResource ColorScrollBarButtonPointeroverForeground}" />
         </Style>
     </ControlTheme>
diff --git a/src/Semi.Avalonia/Controls/TabControl.axaml b/src/Semi.Avalonia/Controls/TabControl.axaml
index a408fd3..58b2589 100644
--- a/src/Semi.Avalonia/Controls/TabControl.axaml
+++ b/src/Semi.Avalonia/Controls/TabControl.axaml
@@ -32,10 +32,10 @@
             </ControlTemplate>
         </Setter>
 
-        <Style Selector="^[TabStripPlacement=Left] /template/ ItemsPresenter#PART_ItemsPresenter &gt; WrapPanel">
+        <Style Selector="^[TabStripPlacement=Left] /template/ ItemsPresenter#PART_ItemsPresenter > WrapPanel">
             <Setter Property="Orientation" Value="Vertical" />
         </Style>
-        <Style Selector="^[TabStripPlacement=Right] /template/ ItemsPresenter#PART_ItemsPresenter &gt; WrapPanel">
+        <Style Selector="^[TabStripPlacement=Right] /template/ ItemsPresenter#PART_ItemsPresenter > WrapPanel">
             <Setter Property="Orientation" Value="Vertical" />
         </Style>
         <Style Selector="^[TabStripPlacement=Left] /template/ Border#PART_BorderSeparator">
diff --git a/src/Semi.Avalonia/Controls/TimePicker.axaml b/src/Semi.Avalonia/Controls/TimePicker.axaml
index 39a7958..bc95b47 100644
--- a/src/Semi.Avalonia/Controls/TimePicker.axaml
+++ b/src/Semi.Avalonia/Controls/TimePicker.axaml
@@ -22,11 +22,12 @@
                     BorderBrush="{TemplateBinding BorderBrush}"
                     BorderThickness="{TemplateBinding BorderThickness}"
                     BoxShadow="{DynamicResource DateTimePickerFlyoutBoxShadow}"
-                    CornerRadius="{TemplateBinding CornerRadius}">
+                    CornerRadius="{TemplateBinding CornerRadius}"
+                    ClipToBounds="True">
                     <Grid Name="ContentPanel" RowDefinitions="*,Auto">
                         <Grid Name="PART_PickerContainer">
                             <Grid.Styles>
-                                <Style Selector="DateTimePickerPanel &gt; ListBoxItem">
+                                <Style Selector="DateTimePickerPanel > ListBoxItem">
                                     <Setter Property="Theme" Value="{StaticResource DateTimePickerItem}" />
                                 </Style>
                             </Grid.Styles>
@@ -130,6 +131,7 @@
                                     Data="{DynamicResource DateTimePickerDismissGlyph}" />
                             </Button>
                             <Rectangle
+                                Grid.Column="0"
                                 Grid.ColumnSpan="2"
                                 Height="1"
                                 VerticalAlignment="Top"
diff --git a/src/Semi.Avalonia/Themes/Dark/HeaderedContentControl.axaml b/src/Semi.Avalonia/Themes/Dark/HeaderedContentControl.axaml
index c5804df..56bc792 100644
--- a/src/Semi.Avalonia/Themes/Dark/HeaderedContentControl.axaml
+++ b/src/Semi.Avalonia/Themes/Dark/HeaderedContentControl.axaml
@@ -1,4 +1,4 @@
 <ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <SolidColorBrush x:Key="HeaderedContentControlDefaultBackground" Color="Transparent" />
-    <SolidColorBrush x:Key="HeaderedContentControlDefaultBorderBrush" Opacity="0.08" Color="White" />
+    <SolidColorBrush x:Key="HeaderedContentControlBackground" Color="#16161A" />
+    <SolidColorBrush x:Key="HeaderedContentControlBorderBrush" Opacity="0.08" Color="White" />
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Semi.Avalonia/Themes/HighContrast/HeaderedContentControl.axaml b/src/Semi.Avalonia/Themes/HighContrast/HeaderedContentControl.axaml
index 2d0c943..de0dd5e 100644
--- a/src/Semi.Avalonia/Themes/HighContrast/HeaderedContentControl.axaml
+++ b/src/Semi.Avalonia/Themes/HighContrast/HeaderedContentControl.axaml
@@ -1,4 +1,4 @@
 <ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <SolidColorBrush x:Key="HeaderedContentControlDefaultBackground" Color="{StaticResource WindowColor}" />
-    <SolidColorBrush x:Key="HeaderedContentControlDefaultBorderBrush" Color="{StaticResource WindowTextColor}" />
+    <SolidColorBrush x:Key="HeaderedContentControlBackground" Color="{StaticResource WindowColor}" />
+    <SolidColorBrush x:Key="HeaderedContentControlBorderBrush" Color="{StaticResource WindowTextColor}" />
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Semi.Avalonia/Themes/Light/HeaderedContentControl.axaml b/src/Semi.Avalonia/Themes/Light/HeaderedContentControl.axaml
index ce87252..501435b 100644
--- a/src/Semi.Avalonia/Themes/Light/HeaderedContentControl.axaml
+++ b/src/Semi.Avalonia/Themes/Light/HeaderedContentControl.axaml
@@ -1,4 +1,4 @@
 <ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <SolidColorBrush x:Key="HeaderedContentControlDefaultBackground" Color="Transparent" />
-    <SolidColorBrush x:Key="HeaderedContentControlDefaultBorderBrush" Opacity="0.08" Color="#1C1F23" />
+    <SolidColorBrush x:Key="HeaderedContentControlBackground" Color="White" />
+    <SolidColorBrush x:Key="HeaderedContentControlBorderBrush" Opacity="0.08" Color="#1C1F23" />
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Semi.Avalonia/Themes/Shared/ComboBox.axaml b/src/Semi.Avalonia/Themes/Shared/ComboBox.axaml
index 219082e..2930b5f 100644
--- a/src/Semi.Avalonia/Themes/Shared/ComboBox.axaml
+++ b/src/Semi.Avalonia/Themes/Shared/ComboBox.axaml
@@ -1,14 +1,22 @@
 <ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
     <CornerRadius x:Key="ComboBoxSelectorCornerRadius">3</CornerRadius>
+    <Thickness x:Key="ComboBoxSelectorThickness">1</Thickness>
 
-    <Thickness x:Key="ComboBoxItemDefaultPadding">8 4</Thickness>
+    <Thickness x:Key="ComboBoxItemDefaultPadding">12 8</Thickness>
     <Thickness x:Key="ComboBoxSelectorDefaultPadding">8 0</Thickness>
 
+    <x:Double x:Key="ComboBoxPopupMaxDropDownHeight">504</x:Double>
     <Thickness x:Key="ComboBoxPopupBorderThickness">1</Thickness>
+    <CornerRadius x:Key="ComboBoxPopupBoxCornerRadius">6</CornerRadius>
 
+    <Thickness x:Key="ComboBoxClearButtonMargin">0 0 8 0</Thickness>
+    <Thickness x:Key="ComboBoxIconMargin">0 0 12 0</Thickness>
+    <x:Double x:Key="ComboBoxIconWidth">12</x:Double>
+    <x:Double x:Key="ComboBoxIconHeight">12</x:Double>
     <StreamGeometry x:Key="ComboBoxIcon">
         M4.08045 7.59809C4.66624 7.01231 5.61599 7.01231 6.20177 7.59809L11.8586 13.2549L17.5155 7.59809C18.1013 7.01231 19.051 7.01231 19.6368 7.59809C20.2226 8.18388 20.2226 9.13363 19.6368 9.71941L12.9193 16.4369C12.3335 17.0227 11.3838 17.0227 10.798 16.4369L4.08045 9.71941C3.49467 9.13363 3.49467 8.18388 4.08045 7.59809Z
     </StreamGeometry>
+    <Thickness x:Key="ComboBoxPopupBorderMargin">0 4</Thickness>
 
     <x:Double x:Key="ComboBoxDefaultHeight">32</x:Double>
     <x:Double x:Key="ComboBoxSmallHeight">24</x:Double>
diff --git a/src/Semi.Avalonia/Themes/Shared/DateTimePickerShared.axaml b/src/Semi.Avalonia/Themes/Shared/DateTimePickerShared.axaml
index 532a50c..80c132d 100644
--- a/src/Semi.Avalonia/Themes/Shared/DateTimePickerShared.axaml
+++ b/src/Semi.Avalonia/Themes/Shared/DateTimePickerShared.axaml
@@ -4,10 +4,10 @@
     <StreamGeometry x:Key="DateTimePickerAcceptGlyph">M17.4111 7.30848C18.0692 7.81171 18.1947 8.75312 17.6915 9.41119L11.1915 17.9112C10.909 18.2806 10.4711 18.4981 10.0061 18.5C9.54105 18.5019 9.10143 18.288 8.81592 17.9209L5.31592 13.4209C4.80731 12.767 4.92512 11.8246 5.57904 11.316C6.23296 10.8074 7.17537 10.9252 7.68398 11.5791L9.98988 14.5438L15.3084 7.58884C15.8116 6.93077 16.7531 6.80525 17.4111 7.30848Z</StreamGeometry>
     <StreamGeometry x:Key="DateTimePickerDismissGlyph">M17.6568 19.7782C18.2426 20.3639 19.1924 20.3639 19.7782 19.7782C20.3639 19.1924 20.3639 18.2426 19.7782 17.6568L14.1213 12L19.7782 6.34313C20.3639 5.75734 20.3639 4.8076 19.7782 4.22181C19.1924 3.63602 18.2426 3.63602 17.6568 4.22181L12 9.87866L6.34313 4.22181C5.75734 3.63602 4.8076 3.63602 4.22181 4.22181C3.63602 4.8076 3.63602 5.75734 4.22181 6.34313L9.87866 12L4.22181 17.6568C3.63602 18.2426 3.63602 19.1924 4.22181 19.7782C4.8076 20.3639 5.75734 20.3639 6.34313 19.7782L12 14.1213L17.6568 19.7782Z</StreamGeometry>
 
-    <x:Double x:Key="DateTimePickerListBoxItemHeight">30</x:Double>
+    <x:Double x:Key="DateTimePickerListBoxItemHeight">36</x:Double>
 
 
-    <Thickness x:Key="DateTimePickerFlyoutPadding">16 0</Thickness>
+    <Thickness x:Key="DateTimePickerFlyoutPadding">0</Thickness>
     <Thickness x:Key="DateTimePickerFlyoutBorderMargin">8</Thickness>
 
     <x:Double x:Key="DateTimePickerButtonSmallHeight">24</x:Double>
diff --git a/src/Semi.Avalonia/Themes/Shared/HeaderedContentControl.axaml b/src/Semi.Avalonia/Themes/Shared/HeaderedContentControl.axaml
index c6e24ac..24289d5 100644
--- a/src/Semi.Avalonia/Themes/Shared/HeaderedContentControl.axaml
+++ b/src/Semi.Avalonia/Themes/Shared/HeaderedContentControl.axaml
@@ -1,3 +1,7 @@
 <ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
-    <CornerRadius x:Key="HeaderedContentControlCornerRadius">4</CornerRadius>
+    <CornerRadius x:Key="HeaderedContentControlCornerRadius">6</CornerRadius>
+    <Thickness x:Key="HeaderedContentControlBorderThickness">1</Thickness>
+    <FontWeight x:Key="HeaderedContentControlHeaderFontWeight">600</FontWeight>
+    <Thickness x:Key="HeaderedContentControlHeaderPadding">20</Thickness>
+    <Thickness x:Key="HeaderedContentControlContentPadding">20</Thickness>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Semi.Avalonia/Themes/Shared/ListBox.axaml b/src/Semi.Avalonia/Themes/Shared/ListBox.axaml
index a402804..371349f 100644
--- a/src/Semi.Avalonia/Themes/Shared/ListBox.axaml
+++ b/src/Semi.Avalonia/Themes/Shared/ListBox.axaml
@@ -1,6 +1,6 @@
 <ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
     <!-- ListBox -->
-    <Thickness x:Key="ListBoxItemDefaultPadding">8 4</Thickness>
+    <Thickness x:Key="ListBoxItemDefaultPadding">12 8</Thickness>
     <CornerRadius x:Key="ListBoxItemCornerRadius">3</CornerRadius>
 
 </ResourceDictionary>
\ No newline at end of file