diff --git a/README-cn.md b/README-cn.md
index 73589fdd..2227976a 100644
--- a/README-cn.md
+++ b/README-cn.md
@@ -73,6 +73,7 @@
 <a href="https://github.com/startewho" target="_blank"><img style="border-radius:50%!important" width="64px" alt="startewho" src="https://avatars0.githubusercontent.com/u/898009?s=64&v=4"></a>
 <a href="https://github.com/5653325" target="_blank"><img style="border-radius:50%!important" width="64px" alt="5653325" src="https://avatars1.githubusercontent.com/u/3361135?s=64&v=4"></a>
 <a href="https://github.com/LostAsk" target="_blank"><img style="border-radius:50%!important" width="64px" alt="LostAsk" src="https://avatars0.githubusercontent.com/u/46678241?s=64&v=4"></a>
+<a href="https://github.com/sanshiliuxiao" target="_blank"><img style="border-radius:50%!important" width="64px" alt="sanshiliuxiao" src="https://avatars3.githubusercontent.com/u/25658690?s=64&v=4"></a>
 
 ## Special thanks to
 
diff --git a/README.md b/README.md
index f723d49a..04aff83c 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,7 @@
 <a href="https://github.com/startewho" target="_blank"><img style="border-radius:50%!important" width="64px" alt="startewho" src="https://avatars0.githubusercontent.com/u/898009?s=64&v=4"></a>
 <a href="https://github.com/5653325" target="_blank"><img style="border-radius:50%!important" width="64px" alt="5653325" src="https://avatars1.githubusercontent.com/u/3361135?s=64&v=4"></a>
 <a href="https://github.com/LostAsk" target="_blank"><img style="border-radius:50%!important" width="64px" alt="LostAsk" src="https://avatars0.githubusercontent.com/u/46678241?s=64&v=4"></a>
+<a href="https://github.com/sanshiliuxiao" target="_blank"><img style="border-radius:50%!important" width="64px" alt="sanshiliuxiao" src="https://avatars3.githubusercontent.com/u/25658690?s=64&v=4"></a>
 
 ## Special thanks to
 
diff --git a/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml b/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml
index 3c5bae4a..bbf97e65 100644
--- a/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml
+++ b/src/Shared/HandyControlDemo_Shared/UserControl/Main/AppNotification.xaml
@@ -2,7 +2,6 @@
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
              xmlns:hc="https://handyorg.github.io/handycontrol"
-             xmlns:ex="clr-namespace:HandyControlDemo.Tools.Extension"
              Background="White"
              BorderThickness="1"
              BorderBrush="{DynamicResource BorderBrush}"
@@ -11,6 +10,6 @@
     <hc:SimplePanel>
         <Path Margin="0,36,0,0" VerticalAlignment="Top" Width="70" Height="70" Data="{StaticResource LogoGeometry}" Fill="#f06632"/>
         <TextBlock Text="HandyControl" FontSize="30" Foreground="{StaticResource PrimaryBrush}" HorizontalAlignment="Center" Margin="0,122,0,0" VerticalAlignment="Top"/>
-        <Button Command="hc:ControlCommands.CloseWindow" CommandParameter="{Binding RelativeSource={RelativeSource Self}}" Content="{ex:Lang Key={x:Static hc:LangKeys.Close}}" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="10,0,10,10"/>
+        <Button Command="hc:ControlCommands.CloseWindow" CommandParameter="{Binding RelativeSource={RelativeSource Self}}" Content="{hc:Lang Key={x:Static hc:LangKeys.Close}}" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="10,0,10,10"/>
     </hc:SimplePanel>
 </Border>
diff --git a/src/Shared/HandyControl_Shared/Properties/AssemblyInfo.cs b/src/Shared/HandyControl_Shared/Properties/AssemblyInfo.cs
index 711938bb..5e7068dc 100644
--- a/src/Shared/HandyControl_Shared/Properties/AssemblyInfo.cs
+++ b/src/Shared/HandyControl_Shared/Properties/AssemblyInfo.cs
@@ -3,6 +3,7 @@
 [assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Controls")]
 [assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Tools")]
 [assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Tools.Converter")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Tools.Extension")]
 [assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Interactivity")]
 [assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Expression.Shapes")]
 [assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Expression.Media")]