diff --git a/src/Core_30/HandyControl_Core_30/Themes/Styles/Base/ComboBoxBaseStyle.xaml b/src/Core_30/HandyControl_Core_30/Themes/Styles/Base/ComboBoxBaseStyle.xaml
index 29c6a7cd..d8f26026 100644
--- a/src/Core_30/HandyControl_Core_30/Themes/Styles/Base/ComboBoxBaseStyle.xaml
+++ b/src/Core_30/HandyControl_Core_30/Themes/Styles/Base/ComboBoxBaseStyle.xaml
@@ -258,7 +258,7 @@
         <Setter Property="AllowDrop" Value="true"/>
         <Setter Property="MinWidth" Value="0"/>
         <Setter Property="MinHeight" Value="0"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
@@ -467,11 +467,11 @@
     <!--下拉项基样式-->
     <Style x:Key="ComboBoxItemBaseStyle" TargetType="ComboBoxItem">
         <Setter Property="SnapsToDevicePixels" Value="True"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="Background" Value="Transparent"/>
         <Setter Property="BorderBrush" Value="Transparent"/>
         <Setter Property="BorderThickness" Value="0"/>
-        <Setter Property="MinHeight" Value="30"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="Template">
             <Setter.Value>
@@ -511,7 +511,7 @@
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
         <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
         <Setter Property="ScrollViewer.PanningMode" Value="Both"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
diff --git a/src/Core_30/HandyControl_Core_30/Themes/Styles/DataGrid.xaml b/src/Core_30/HandyControl_Core_30/Themes/Styles/DataGrid.xaml
index e34f59c3..3abe4eba 100644
--- a/src/Core_30/HandyControl_Core_30/Themes/Styles/DataGrid.xaml
+++ b/src/Core_30/HandyControl_Core_30/Themes/Styles/DataGrid.xaml
@@ -43,7 +43,7 @@
         <Setter Property="BorderThickness" Value="0"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="HorizontalContentAlignment" Value="Left"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="Margin" Value="0,0,4,0"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Core_30/HandyControl_Core_30/Themes/Styles/ListView.xaml b/src/Core_30/HandyControl_Core_30/Themes/Styles/ListView.xaml
index dd97cbbd..acbc591e 100644
--- a/src/Core_30/HandyControl_Core_30/Themes/Styles/ListView.xaml
+++ b/src/Core_30/HandyControl_Core_30/Themes/Styles/ListView.xaml
@@ -3,6 +3,7 @@
                     xmlns:controls="clr-namespace:HandyControl.Controls">
 
     <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../Basic/Sizes.xaml"/>
         <ResourceDictionary Source="Base/ScrollViewerBaseStyle.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
@@ -59,7 +60,7 @@
         <Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
         <Setter Property="SnapsToDevicePixels" Value="true"/>
         <Setter Property="Margin" Value="0,0,0,4"/>
-        <Setter Property="Padding" Value="8,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="MinHeight" Value="44"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Net_40/HandyControl_Net_40/Themes/Styles/Base/ComboBoxBaseStyle.xaml b/src/Net_40/HandyControl_Net_40/Themes/Styles/Base/ComboBoxBaseStyle.xaml
index 52ccd53e..afbb2390 100644
--- a/src/Net_40/HandyControl_Net_40/Themes/Styles/Base/ComboBoxBaseStyle.xaml
+++ b/src/Net_40/HandyControl_Net_40/Themes/Styles/Base/ComboBoxBaseStyle.xaml
@@ -5,6 +5,7 @@
                     xmlns:interactivity="clr-namespace:HandyControl.Interactivity">
 
     <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../../Basic/Sizes.xaml"/>
         <ResourceDictionary Source="../../Basic/Geometries.xaml"/>
         <ResourceDictionary Source="../../Basic/Converters.xaml"/>
         <ResourceDictionary Source="../TextBlock.xaml"/>
@@ -237,7 +238,7 @@
         <Setter Property="AllowDrop" Value="true"/>
         <Setter Property="MinWidth" Value="0"/>
         <Setter Property="MinHeight" Value="0"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
@@ -425,11 +426,11 @@
     <!--下拉项基样式-->
     <Style x:Key="ComboBoxItemBaseStyle" TargetType="ComboBoxItem">
         <Setter Property="SnapsToDevicePixels" Value="True"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="Background" Value="Transparent"/>
         <Setter Property="BorderBrush" Value="Transparent"/>
         <Setter Property="BorderThickness" Value="0"/>
-        <Setter Property="MinHeight" Value="30"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="Template">
             <Setter.Value>
@@ -463,17 +464,17 @@
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="ItemContainerStyle" Value="{StaticResource ComboBoxItemBaseStyle}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
         <Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
         <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
-        <Setter Property="Height" Value="30"/>
+        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
         <Setter Property="ScrollViewer.PanningMode" Value="Both"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="Template" Value="{StaticResource ComboBoxTemplate}"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Style.Triggers>
@@ -489,7 +490,7 @@
         <Setter Property="Height" Value="{x:Static system:Double.NaN}"/>
         <Setter Property="Template" Value="{StaticResource ComboBoxTopTemplate}"/>
         <Setter Property="controls:InfoElement.Symbol" Value="●"/>
-        <Setter Property="controls:InfoElement.ContentHeight" Value="30.0"/>
+        <Setter Property="controls:InfoElement.ContentHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Style.Triggers>
             <MultiTrigger>
                 <MultiTrigger.Conditions>
diff --git a/src/Net_40/HandyControl_Net_40/Themes/Styles/DataGrid.xaml b/src/Net_40/HandyControl_Net_40/Themes/Styles/DataGrid.xaml
index b2775b3b..e609758e 100644
--- a/src/Net_40/HandyControl_Net_40/Themes/Styles/DataGrid.xaml
+++ b/src/Net_40/HandyControl_Net_40/Themes/Styles/DataGrid.xaml
@@ -43,7 +43,7 @@
         <Setter Property="BorderThickness" Value="0"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="HorizontalContentAlignment" Value="Left"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="Margin" Value="0,0,4,0"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Net_40/HandyControl_Net_40/Themes/Styles/ListView.xaml b/src/Net_40/HandyControl_Net_40/Themes/Styles/ListView.xaml
index f5ec8276..770971b8 100644
--- a/src/Net_40/HandyControl_Net_40/Themes/Styles/ListView.xaml
+++ b/src/Net_40/HandyControl_Net_40/Themes/Styles/ListView.xaml
@@ -2,6 +2,7 @@
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
 
     <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../Basic/Sizes.xaml"/>
         <ResourceDictionary Source="Base/ScrollViewerBaseStyle.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
@@ -58,7 +59,7 @@
         <Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
         <Setter Property="SnapsToDevicePixels" Value="true"/>
         <Setter Property="Margin" Value="0,0,0,4"/>
-        <Setter Property="Padding" Value="8,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="MinHeight" Value="44"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/Base/ComboBoxBaseStyle.xaml b/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/Base/ComboBoxBaseStyle.xaml
index 29c6a7cd..d8f26026 100644
--- a/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/Base/ComboBoxBaseStyle.xaml
+++ b/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/Base/ComboBoxBaseStyle.xaml
@@ -258,7 +258,7 @@
         <Setter Property="AllowDrop" Value="true"/>
         <Setter Property="MinWidth" Value="0"/>
         <Setter Property="MinHeight" Value="0"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
@@ -467,11 +467,11 @@
     <!--下拉项基样式-->
     <Style x:Key="ComboBoxItemBaseStyle" TargetType="ComboBoxItem">
         <Setter Property="SnapsToDevicePixels" Value="True"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="Background" Value="Transparent"/>
         <Setter Property="BorderBrush" Value="Transparent"/>
         <Setter Property="BorderThickness" Value="0"/>
-        <Setter Property="MinHeight" Value="30"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="Template">
             <Setter.Value>
@@ -511,7 +511,7 @@
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
         <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="ScrollViewer.CanContentScroll" Value="true"/>
         <Setter Property="ScrollViewer.PanningMode" Value="Both"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
diff --git a/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/DataGrid.xaml b/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/DataGrid.xaml
index d992330d..3e601152 100644
--- a/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/DataGrid.xaml
+++ b/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/DataGrid.xaml
@@ -43,7 +43,7 @@
         <Setter Property="BorderThickness" Value="0"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="HorizontalContentAlignment" Value="Left"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="Margin" Value="0,0,4,0"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/ListView.xaml b/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/ListView.xaml
index dd97cbbd..acbc591e 100644
--- a/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/ListView.xaml
+++ b/src/Net_GE45/HandyControl_Net_GE45/Themes/Styles/ListView.xaml
@@ -3,6 +3,7 @@
                     xmlns:controls="clr-namespace:HandyControl.Controls">
 
     <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../Basic/Sizes.xaml"/>
         <ResourceDictionary Source="Base/ScrollViewerBaseStyle.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
@@ -59,7 +60,7 @@
         <Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
         <Setter Property="SnapsToDevicePixels" Value="true"/>
         <Setter Property="Margin" Value="0,0,0,4"/>
-        <Setter Property="Padding" Value="8,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="MinHeight" Value="44"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Shared/HandyControl_Shared/Controls/Attach/BorderElement.cs b/src/Shared/HandyControl_Shared/Controls/Attach/BorderElement.cs
index 7ee4455b..34eca2f6 100644
--- a/src/Shared/HandyControl_Shared/Controls/Attach/BorderElement.cs
+++ b/src/Shared/HandyControl_Shared/Controls/Attach/BorderElement.cs
@@ -34,8 +34,8 @@ namespace HandyControl.Controls
                 }
                 else
                 {
-                    BindingOperations.ClearBinding(border, FrameworkElement.MinWidthProperty);
-                    BindingOperations.ClearBinding(border, FrameworkElement.MinHeightProperty);
+                    BindingOperations.ClearBinding(border, FrameworkElement.ActualWidthProperty);
+                    BindingOperations.ClearBinding(border, FrameworkElement.ActualHeightProperty);
                     BindingOperations.ClearBinding(border, Border.CornerRadiusProperty);
                 }
             }
diff --git a/src/Shared/HandyControl_Shared/Controls/Attach/RectangleAttach.cs b/src/Shared/HandyControl_Shared/Controls/Attach/RectangleAttach.cs
new file mode 100644
index 00000000..dcf8c9ef
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Controls/Attach/RectangleAttach.cs
@@ -0,0 +1,45 @@
+using System.Windows;
+using System.Windows.Data;
+using System.Windows.Shapes;
+using HandyControl.Data;
+using HandyControl.Tools.Converter;
+
+namespace HandyControl.Controls
+{
+    public class RectangleAttach
+    {
+        public static readonly DependencyProperty CircularProperty = DependencyProperty.RegisterAttached(
+            "Circular", typeof(bool), typeof(RectangleAttach), new PropertyMetadata(ValueBoxes.FalseBox, OnCircularChanged));
+
+        private static void OnCircularChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            if (d is Rectangle rectangle)
+            {
+                if ((bool)e.NewValue)
+                {
+                    var binding = new MultiBinding
+                    {
+                        Converter = new RectangleCircularConverter()
+                    };
+                    binding.Bindings.Add(new Binding(FrameworkElement.ActualWidthProperty.Name) { Source = rectangle });
+                    binding.Bindings.Add(new Binding(FrameworkElement.ActualHeightProperty.Name) { Source = rectangle });
+                    rectangle.SetBinding(Rectangle.RadiusXProperty, binding);
+                    rectangle.SetBinding(Rectangle.RadiusYProperty, binding);
+                }
+                else
+                {
+                    BindingOperations.ClearBinding(rectangle, FrameworkElement.ActualWidthProperty);
+                    BindingOperations.ClearBinding(rectangle, FrameworkElement.ActualHeightProperty);
+                    BindingOperations.ClearBinding(rectangle, Rectangle.RadiusXProperty);
+                    BindingOperations.ClearBinding(rectangle, Rectangle.RadiusYProperty);
+                }
+            }
+        }
+
+        public static void SetCircular(DependencyObject element, bool value)
+            => element.SetValue(CircularProperty, value);
+
+        public static bool GetCircular(DependencyObject element)
+            => (bool) element.GetValue(CircularProperty);
+    }
+}
diff --git a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
index 91dcd613..2bbc21ab 100644
--- a/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
+++ b/src/Shared/HandyControl_Shared/HandyControl_Shared.projitems
@@ -18,6 +18,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\InfoElement.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\PanelElement.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\PasswordBoxAttach.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Controls\Attach\RectangleAttach.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\ButtonGroup.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Other\Card.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Controls\Slider\RangeSlider\RangeTrack.cs" />
@@ -26,6 +27,7 @@
     <Compile Include="$(MSBuildThisFileDirectory)Interactivity\Commands\OpenLinkCommand.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\BorderCircularClipConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\Number2PercentageConverter.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Tools\Converter\RectangleCircularConverter.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Extension\FrameworkElementExtension.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\Extension\StringExtension.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Tools\GlobalShortcut.cs" />
@@ -680,6 +682,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="$(MSBuildThisFileDirectory)Themes\Styles\Rectangle.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="$(MSBuildThisFileDirectory)Themes\Styles\RepeatButton.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
diff --git a/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml b/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
index f59dcea9..2d3eb7fd 100644
--- a/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Basic/Converters.xaml
@@ -19,4 +19,5 @@
     <converter:BorderCircularConverter x:Key="BorderCircularConverter"/>
     <converter:Object2VisibilityConverter x:Key="Object2VisibilityConverter"/>
     <converter:Number2PercentageConverter x:Key="Number2PercentageConverter"/>
+    <converter:RectangleCircularConverter x:Key="RectangleCircularConverter"/>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Themes/Basic/Sizes.xaml b/src/Shared/HandyControl_Shared/Themes/Basic/Sizes.xaml
index 0d88fc35..ad1239ca 100644
--- a/src/Shared/HandyControl_Shared/Themes/Basic/Sizes.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Basic/Sizes.xaml
@@ -3,7 +3,7 @@
                     xmlns:system="clr-namespace:System;assembly=mscorlib">
 
     <system:Double x:Key="DefaultControlHeight">30</system:Double>
-    <Thickness x:Key="DefaultControlPadding">12,6</Thickness>
+    <Thickness x:Key="DefaultControlPadding">10,6</Thickness>
     <Thickness x:Key="DefaultInputPadding">8,6</Thickness>
     <CornerRadius x:Key="DefaultCornerRadius">4</CornerRadius>
 
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/BaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/BaseStyle.xaml
index 9709fd55..f8cc1e2f 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/BaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/BaseStyle.xaml
@@ -3,13 +3,14 @@
 
     <ResourceDictionary.MergedDictionaries>
         <ResourceDictionary Source="../../Basic/Fonts.xaml"/>
+        <ResourceDictionary Source="../Rectangle.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
     <Style x:Key="FocusVisual">
         <Setter Property="Control.Template">
             <Setter.Value>
                 <ControlTemplate>
-                    <Rectangle Margin="-2" Opacity=".6" SnapsToDevicePixels="true" Stroke="{DynamicResource SecondaryBorderBrush}" StrokeThickness="2" StrokeDashArray="1 1" RadiusX="4" RadiusY="4"/>
+                    <Rectangle Style="{StaticResource RectangleFocusVisual}" RadiusX="4" RadiusY="4"/>
                 </ControlTemplate>
             </Setter.Value>
         </Setter>
@@ -19,7 +20,7 @@
         <Setter Property="Control.Template">
             <Setter.Value>
                 <ControlTemplate>
-                    <Rectangle Margin="-2" Opacity=".6" SnapsToDevicePixels="true" Stroke="{DynamicResource SecondaryBorderBrush}" StrokeThickness="2" StrokeDashArray="1 1"/>
+                    <Rectangle Style="{StaticResource RectangleFocusVisual}"/>
                 </ControlTemplate>
             </Setter.Value>
         </Setter>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonBaseStyle.xaml
index 26ada988..7c76ac44 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonBaseStyle.xaml
@@ -8,7 +8,7 @@
 
     <Style x:Key="ButtonBaseStyle" BasedOn="{StaticResource ButtonBaseBaseStyle}" TargetType="Button">
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="Button">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/CardBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/CardBaseStyle.xaml
index 22fe9533..a8c49d39 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/CardBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/CardBaseStyle.xaml
@@ -5,6 +5,7 @@
     <ResourceDictionary.MergedDictionaries>
         <ResourceDictionary Source="BaseStyle.xaml"/>
         <ResourceDictionary Source="../../Basic/Converters.xaml"/>
+        <ResourceDictionary Source="../../Basic/Sizes.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
     <Style x:Key="CardBaseStyle" BasedOn="{StaticResource BaseStyle}" TargetType="controls:Card">
@@ -12,7 +13,7 @@
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
         <Setter Property="Focusable" Value="False"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="controls:Card">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/DatePickerBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/DatePickerBaseStyle.xaml
index 70fa185b..ce60374a 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/DatePickerBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/DatePickerBaseStyle.xaml
@@ -34,7 +34,7 @@
         <Setter Property="SelectedDateFormat" Value="Short"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="Padding" Value="{StaticResource DefaultInputPadding}"/>
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/DateTimePickerBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/DateTimePickerBaseStyle.xaml
index aff68520..2eb9d802 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/DateTimePickerBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/DateTimePickerBaseStyle.xaml
@@ -16,7 +16,7 @@
         <Setter Property="Padding" Value="{StaticResource DefaultInputPadding}"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="Template">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/GotoTopBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/GotoTopBaseStyle.xaml
index a4ab4e5b..a922ecc5 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/GotoTopBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/GotoTopBaseStyle.xaml
@@ -5,6 +5,7 @@
     <ResourceDictionary.MergedDictionaries>
         <ResourceDictionary Source="../../Basic/Geometries.xaml"/>
         <ResourceDictionary Source="../Button.xaml"/>
+        <ResourceDictionary Source="../Rectangle.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
     <Style x:Key="GotoTopBaseStyle" BasedOn="{StaticResource ButtonBaseStyle}" TargetType="controls:GotoTop">
@@ -21,7 +22,7 @@
                     <Setter Property="Control.Template">
                         <Setter.Value>
                             <ControlTemplate>
-                                <Rectangle Margin="-2" Opacity=".6" SnapsToDevicePixels="true" Stroke="{DynamicResource SecondaryBorderBrush}" StrokeThickness="2" StrokeDashArray="1 1" RadiusX="25" RadiusY="25"/>
+                                <Rectangle Style="{StaticResource RectangleFocusVisualCircular}"/>
                             </ControlTemplate>
                         </Setter.Value>
                     </Setter>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/GravatarBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/GravatarBaseStyle.xaml
index a32f2f07..e62c06c0 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/GravatarBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/GravatarBaseStyle.xaml
@@ -2,12 +2,16 @@
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:controls="clr-namespace:HandyControl.Controls">
 
+    <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../../Basic/Sizes.xaml"/>
+    </ResourceDictionary.MergedDictionaries>
+
     <Style x:Key="GravatarBaseStyle" TargetType="controls:Gravatar">
         <Setter Property="Focusable" Value="False"/>
         <Setter Property="Width" Value="72"/>
         <Setter Property="Height" Value="72"/>
         <Setter Property="Background" Value="{DynamicResource SecondaryRegionBrush}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Padding" Value="6"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/GroupBoxBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/GroupBoxBaseStyle.xaml
index 839b57bc..28919253 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/GroupBoxBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/GroupBoxBaseStyle.xaml
@@ -2,6 +2,10 @@
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:controls="clr-namespace:HandyControl.Controls">
 
+    <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../../Basic/Sizes.xaml"/>
+    </ResourceDictionary.MergedDictionaries>
+
     <ControlTemplate x:Key="GroupBoxBaseTopTemplate" TargetType="GroupBox">
         <Grid>
             <Grid.RowDefinitions>
@@ -44,7 +48,7 @@
         <Setter Property="Foreground" Value="{DynamicResource TextIconBrush}"/>
         <Setter Property="controls:TitleElement.Background" Value="{DynamicResource TitleBrush}"/>
         <Setter Property="controls:TitleElement.TitleAlignment" Value="Top"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="HorizontalContentAlignment" Value="Center"/>
         <Setter Property="BorderThickness" Value="0"/>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/LabelBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/LabelBaseStyle.xaml
index 94fddd19..abc70ef9 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/LabelBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/LabelBaseStyle.xaml
@@ -10,7 +10,7 @@
         <Setter Property="Foreground" Value="{DynamicResource TextIconBrush}"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="HorizontalContentAlignment" Value="Center"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/NumericUpDownBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/NumericUpDownBaseStyle.xaml
index d0050b47..b01ad9fd 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/NumericUpDownBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/NumericUpDownBaseStyle.xaml
@@ -21,7 +21,7 @@
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="AllowDrop" Value="true"/>
         <Setter Property="Padding" Value="{StaticResource DefaultInputPadding}"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/PasswordBoxBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/PasswordBoxBaseStyle.xaml
index d79a4f45..6028041e 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/PasswordBoxBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/PasswordBoxBaseStyle.xaml
@@ -24,7 +24,7 @@
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="AllowDrop" Value="true"/>
         <Setter Property="Padding" Value="{StaticResource DefaultInputPadding}"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
         <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
@@ -116,9 +116,8 @@
 
     <Style x:Key="PasswordBoxExtendBaseStyle" BasedOn="{StaticResource PasswordBoxBaseStyle}" TargetType="PasswordBox">
         <Setter Property="Height" Value="{x:Static system:Double.NaN}"/>
-        <Setter Property="Padding" Value="7,6"/>
         <Setter Property="controls:InfoElement.Symbol" Value="●"/>
-        <Setter Property="controls:InfoElement.ContentHeight" Value="30.0"/>
+        <Setter Property="controls:InfoElement.ContentHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="controls:PasswordBoxAttach.IsMonitoring" Value="True"/>
         <Setter Property="Template" Value="{StaticResource PasswordBoxExtendTopTemplate}"/>
         <Style.Triggers>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ProgressBarBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ProgressBarBaseStyle.xaml
index 2a33fef1..cf0d398a 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ProgressBarBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ProgressBarBaseStyle.xaml
@@ -4,6 +4,7 @@
                     xmlns:shapes="clr-namespace:HandyControl.Expression.Shapes">
 
     <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../../Basic/Sizes.xaml"/>
         <ResourceDictionary Source="../../Basic/Converters.xaml"/>
         <ResourceDictionary Source="../Border.xaml"/>
     </ResourceDictionary.MergedDictionaries>
@@ -25,7 +26,7 @@
             </Setter.Value>
         </Setter>
         <Setter Property="Height" Value="20"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Background" Value="{DynamicResource SecondaryRegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
         <Setter Property="BorderThickness" Value="0"/>
@@ -51,7 +52,7 @@
 
     <Style x:Key="ProgressBarStripeBaseStyle" TargetType="ProgressBar">
         <Setter Property="Height" Value="20"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Background" Value="{DynamicResource SecondaryRegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
         <Setter Property="BorderThickness" Value="0"/>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ProgressButtonBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ProgressButtonBaseStyle.xaml
index 78538abe..5f1b92ff 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ProgressButtonBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ProgressButtonBaseStyle.xaml
@@ -10,7 +10,7 @@
 
     <Style x:Key="ProgressBarFlat4ProgressButton" TargetType="ProgressBar">
         <Setter Property="Background" Value="Transparent"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Foreground" Value="{DynamicResource DarkMaskBrush}"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/RepeatButtonBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/RepeatButtonBaseStyle.xaml
index 19b9f5a9..96f99f0a 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/RepeatButtonBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/RepeatButtonBaseStyle.xaml
@@ -8,7 +8,7 @@
 
     <Style x:Key="RepeatButtonBaseStyle" BasedOn="{StaticResource ButtonBaseBaseStyle}" TargetType="RepeatButton">
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="RepeatButton">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TabControlBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TabControlBaseStyle.xaml
index ca832f90..cc447b20 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TabControlBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TabControlBaseStyle.xaml
@@ -13,8 +13,8 @@
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource PrimaryBrush}"/>
         <Setter Property="Margin" Value="0"/>
-        <Setter Property="Padding" Value="10,6"/>
-        <Setter Property="MinHeight" Value="30"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
         <Setter Property="VerticalContentAlignment" Value="Stretch"/>
         <Setter Property="Template">
@@ -139,7 +139,7 @@
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="VerticalAlignment" Value="Center"/>
         <Setter Property="controls:BorderElement.CornerRadius" Value="0"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="Padding" Value="10,0"/>
         <Setter Property="Margin" Value="-1,0,0,0"/>
         <Setter Property="Template">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TagBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TagBaseStyle.xaml
index a03b37e6..685b8b13 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TagBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TagBaseStyle.xaml
@@ -7,25 +7,26 @@
         <ResourceDictionary Source="../../Basic/Geometries.xaml"/>
         <ResourceDictionary Source="../../Basic/Converters.xaml"/>
         <ResourceDictionary Source="../Button.xaml"/>
+        <ResourceDictionary Source="../Border.xaml"/>
+        <ResourceDictionary Source="../Rectangle.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
     <Style x:Key="TagBaseStyle" BasedOn="{StaticResource BaseStyle}" TargetType="controls:Tag">
         <Setter Property="Background" Value="{DynamicResource SecondaryRegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="15"/>
-        <Setter Property="Padding" Value="10,6"/>
+        <Setter Property="Padding" Value="{StaticResource DefaultControlPadding}"/>
         <Setter Property="HorizontalContentAlignment" Value="Center"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="HorizontalAlignment" Value="Center"/>
         <Setter Property="VerticalAlignment" Value="Center"/>
-        <Setter Property="Height" Value="30"/>
+        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="FocusVisualStyle">
             <Setter.Value>
                 <Style>
                     <Setter Property="Control.Template">
                         <Setter.Value>
                             <ControlTemplate>
-                                <Rectangle Margin="-2" Opacity=".6" SnapsToDevicePixels="true" Stroke="{DynamicResource SecondaryBorderBrush}" StrokeThickness="2" StrokeDashArray="1 1" RadiusX="15" RadiusY="15"/>
+                                <Rectangle Style="{StaticResource RectangleFocusVisualCircular}"/>
                             </ControlTemplate>
                         </Setter.Value>
                     </Setter>
@@ -35,7 +36,7 @@
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="controls:Tag">
-                    <Border CornerRadius="{Binding Path=(controls:BorderElement.CornerRadius),RelativeSource={RelativeSource TemplatedParent}}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
+                    <Border Style="{StaticResource BorderCircular}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
                         <Grid>
                             <Grid.ColumnDefinitions>
                                 <ColumnDefinition/>
@@ -68,10 +69,9 @@
         </Style.Triggers>
     </Style>
 
-    <Style x:Key="AddTagButtonStyle" TargetType="Button" BasedOn="{StaticResource ButtonIcon}">
+    <Style x:Key="AddTagButtonStyle" TargetType="Button" BasedOn="{StaticResource ButtonIconCircular}">
         <Setter Property="Background" Value="{DynamicResource PrimaryBrush}"/>
         <Setter Property="controls:IconElement.Geometry" Value="{StaticResource AddGeometry}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="15"/>
         <Setter Property="Padding" Value="10"/>
         <Setter Property="Foreground" Value="{DynamicResource TextIconBrush}"/>
         <Setter Property="FocusVisualStyle">
@@ -80,7 +80,7 @@
                     <Setter Property="Control.Template">
                         <Setter.Value>
                             <ControlTemplate>
-                                <Rectangle Margin="-2" Opacity=".6" SnapsToDevicePixels="true" Stroke="{DynamicResource SecondaryBorderBrush}" StrokeThickness="2" StrokeDashArray="1 1" RadiusX="15" RadiusY="15"/>
+                                <Rectangle Style="{StaticResource RectangleFocusVisualCircular}"/>
                             </ControlTemplate>
                         </Setter.Value>
                     </Setter>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TextBoxBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TextBoxBaseStyle.xaml
index a8f0852d..f91ce695 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TextBoxBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TextBoxBaseStyle.xaml
@@ -32,7 +32,7 @@
     </Style>
 
     <Style x:Key="TextBoxBaseStyle" TargetType="TextBox">
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
         <Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TimePickerBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TimePickerBaseStyle.xaml
index 0528838d..aebdd389 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TimePickerBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TimePickerBaseStyle.xaml
@@ -16,7 +16,7 @@
         <Setter Property="Padding" Value="{StaticResource DefaultInputPadding}"/>
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
-        <Setter Property="Height" Value="{StaticResource DefaultControlHeight}"/>
+        <Setter Property="MinHeight" Value="{StaticResource DefaultControlHeight}"/>
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="VerticalContentAlignment" Value="Center"/>
         <Setter Property="Template">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ToggleButtonBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ToggleButtonBaseStyle.xaml
index 206dd44e..1066dbdc 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ToggleButtonBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ToggleButtonBaseStyle.xaml
@@ -5,11 +5,12 @@
 
     <ResourceDictionary.MergedDictionaries>
         <ResourceDictionary Source="ButtonBaseBaseStyle.xaml"/>
+        <ResourceDictionary Source="../Rectangle.xaml"/>
         <ResourceDictionary Source="../../Basic/Effects.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
     <Style x:Key="ToggleButtonBaseStyle" BasedOn="{StaticResource ButtonBaseBaseStyle}" TargetType="ToggleButton">
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource DarkMaskBrush}"/>
         <Setter Property="Template">
             <Setter.Value>
@@ -59,7 +60,7 @@
                     <Setter Property="Control.Template">
                         <Setter.Value>
                             <ControlTemplate>
-                                <Rectangle Margin="-2" Opacity=".6" SnapsToDevicePixels="true" Stroke="{DynamicResource SecondaryBorderBrush}" StrokeThickness="2" StrokeDashArray="1 1" RadiusX="11" RadiusY="11"/>
+                                <Rectangle Style="{StaticResource RectangleFocusVisualCircular}"/>
                             </ControlTemplate>
                         </Setter.Value>
                     </Setter>
@@ -130,31 +131,33 @@
                             </DoubleAnimationUsingKeyFrames>
                         </Storyboard>
                     </ControlTemplate.Resources>
-                    <Grid x:Name="templateRoot" Background="Transparent" SnapsToDevicePixels="True">
-                        <Grid.ColumnDefinitions>
-                            <ColumnDefinition Width="Auto"/>
-                            <ColumnDefinition Width="*"/>
-                        </Grid.ColumnDefinitions>
-                        <Border Height="22" Width="36" x:Name="backBorder" Background="{DynamicResource BorderBrush}" CornerRadius="11"/>
-                        <Border Grid.Column="0" Height="22" Width="36" Opacity="0" x:Name="lightBorder" Background="{DynamicResource PrimaryBrush}" CornerRadius="11" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"/>
-                        <Border Grid.Column="0" Height="20" Margin="1" Background="{TemplateBinding Background}" CornerRadius="11" Name="innerBorder" RenderTransformOrigin=".8,0.5">
-                            <Border.RenderTransform>
-                                <TransformGroup>
-                                    <ScaleTransform/>
-                                </TransformGroup>
-                            </Border.RenderTransform>
-                        </Border>
-                        <controls:SimplePanel Grid.Column="0" Margin="1">
-                            <Border HorizontalAlignment="Left" CornerRadius="10" Name="thumb" Effect="{StaticResource EffectShadow2}" Background="White" Width="20" Height="20" RenderTransformOrigin="0.5,0.5">
+                    <Viewbox>
+                        <Grid x:Name="templateRoot" Background="Transparent" SnapsToDevicePixels="True">
+                            <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="Auto"/>
+                                <ColumnDefinition Width="*"/>
+                            </Grid.ColumnDefinitions>
+                            <Border Height="22" Width="36" x:Name="backBorder" Background="{DynamicResource BorderBrush}" CornerRadius="11"/>
+                            <Border Grid.Column="0" Height="22" Width="36" Opacity="0" x:Name="lightBorder" Background="{DynamicResource PrimaryBrush}" CornerRadius="11" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"/>
+                            <Border Grid.Column="0" Height="20" Margin="1" Background="{TemplateBinding Background}" CornerRadius="11" Name="innerBorder" RenderTransformOrigin=".8,0.5">
                                 <Border.RenderTransform>
                                     <TransformGroup>
-                                        <TranslateTransform/>
+                                        <ScaleTransform/>
                                     </TransformGroup>
                                 </Border.RenderTransform>
                             </Border>
-                        </controls:SimplePanel>
-                        <ContentPresenter x:Name="contentPresenter" Visibility="Collapsed" Grid.Column="1" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
-                    </Grid>
+                            <controls:SimplePanel Grid.Column="0" Margin="1">
+                                <Border HorizontalAlignment="Left" CornerRadius="10" Name="thumb" Effect="{StaticResource EffectShadow2}" Background="White" Width="20" Height="20" RenderTransformOrigin="0.5,0.5">
+                                    <Border.RenderTransform>
+                                        <TransformGroup>
+                                            <TranslateTransform/>
+                                        </TransformGroup>
+                                    </Border.RenderTransform>
+                                </Border>
+                            </controls:SimplePanel>
+                            <ContentPresenter x:Name="contentPresenter" Visibility="Collapsed" Grid.Column="1" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
+                        </Grid>
+                    </Viewbox>
                     <ControlTemplate.Triggers>
                         <Trigger Property="HasContent" Value="true">
                             <Setter Property="Visibility" TargetName="contentPresenter" Value="Visible"/>
@@ -183,7 +186,7 @@
         <Setter Property="Padding" Value="8"/>
         <Setter Property="controls:IconSwitchElement.Geometry" Value="{x:Null}"/>
         <Setter Property="controls:IconSwitchElement.GeometrySelected" Value="{x:Null}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource DarkMaskBrush}"/>
         <Setter Property="BorderThickness" Value="0"/>
         <Setter Property="Template">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ToolBarBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ToolBarBaseStyle.xaml
index ecdd240d..308f284c 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/ToolBarBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/ToolBarBaseStyle.xaml
@@ -130,7 +130,7 @@
 
     <Style x:Key="ToolBarBaseStyle" TargetType="ToolBar">
         <Setter Property="Background" Value="{DynamicResource SecondaryRegionBrush}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="Margin" Value="0,0,4,4"/>
         <Setter Property="Template">
             <Setter.Value>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TransferBaseStyle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TransferBaseStyle.xaml
index daa736d6..576325c8 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Base/TransferBaseStyle.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Base/TransferBaseStyle.xaml
@@ -86,7 +86,7 @@
     <Style x:Key="TransferBaseStyle" TargetType="controls:Transfer">
         <Setter Property="Focusable" Value="False"/>
         <Setter Property="BorderThickness" Value="1"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
         <Setter Property="ItemContainerStyle" Value="{StaticResource TransferItemBaseStyle}"/>
         <Setter Property="Template">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Button.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Button.xaml
index 75a96a7c..7b0acfa1 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Button.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Button.xaml
@@ -4,6 +4,7 @@
 
     <ResourceDictionary.MergedDictionaries>
         <ResourceDictionary Source="Base/ButtonBaseStyle.xaml"/>
+        <ResourceDictionary Source="Border.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
     <Style BasedOn="{StaticResource ButtonBaseStyle}" TargetType="Button">
@@ -51,6 +52,20 @@
         </Setter>
     </Style>
 
+    <Style x:Key="ButtonIconCircular" BasedOn="{StaticResource ButtonIcon}" TargetType="Button">
+        <Setter Property="Template">
+            <Setter.Value>
+                <ControlTemplate TargetType="Button">
+                    <Border Style="{StaticResource BorderCircular}" Background="{TemplateBinding Background}" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}">
+                        <ContentControl HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="{TemplateBinding Padding}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}">
+                            <Path Fill="{TemplateBinding Foreground}" SnapsToDevicePixels="True" Stretch="Uniform" Width="{TemplateBinding controls:IconElement.Width}" Height="{TemplateBinding controls:IconElement.Height}" Data="{TemplateBinding controls:IconElement.Geometry}"/>
+                        </ContentControl>
+                    </Border>
+                </ControlTemplate>
+            </Setter.Value>
+        </Setter>
+    </Style>
+
     <Style x:Key="ButtonCustom" BasedOn="{StaticResource BaseStyle}" TargetType="Button">
         <Setter Property="Background" Value="{x:Null}"/>
         <Setter Property="HorizontalContentAlignment" Value="Center"/>
@@ -93,7 +108,7 @@
     </Style>
 
     <Style x:Key="ButtonGroupItemSingle" BasedOn="{StaticResource ButtonGroupItemBaseStyle}" TargetType="Button">
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
     </Style>
 
     <Style x:Key="ButtonGroupItemVerticalFirst" BasedOn="{StaticResource ButtonGroupItemBaseStyle}" TargetType="Button">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Calendar.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Calendar.xaml
index fd32fb54..c6a3d668 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Calendar.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Calendar.xaml
@@ -5,6 +5,7 @@
 
     <ResourceDictionary.MergedDictionaries>
         <ResourceDictionary Source="../Basic/Geometries.xaml"/>
+        <ResourceDictionary Source="Rectangle.xaml"/>
         <ResourceDictionary Source="Button.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
@@ -78,7 +79,7 @@
                     <Setter Property="Control.Template">
                         <Setter.Value>
                             <ControlTemplate>
-                                <Rectangle Margin="-2" Opacity=".6" SnapsToDevicePixels="true" Stroke="{DynamicResource SecondaryBorderBrush}" StrokeThickness="2" StrokeDashArray="1 1" RadiusX="16" RadiusY="16"/>
+                                <Rectangle Style="{StaticResource RectangleFocusVisualCircular}"/>
                             </ControlTemplate>
                         </Setter.Value>
                     </Setter>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/PopupWindow.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/PopupWindow.xaml
index d1d5180c..b81b2f0c 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/PopupWindow.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/PopupWindow.xaml
@@ -40,7 +40,7 @@
                                     <ColumnDefinition/>
                                     <ColumnDefinition Width="Auto"/>
                                 </Grid.ColumnDefinitions>
-                                <TextBlock Name="PART_TitleBlock" Background="Transparent" Padding="10,6" Foreground="White" Text="{TemplateBinding Title}" VerticalAlignment="Center" TextWrapping="Wrap" TextTrimming="WordEllipsis"/>
+                                <TextBlock Name="PART_TitleBlock" Background="Transparent" Padding="{StaticResource DefaultControlPadding}" Foreground="White" Text="{TemplateBinding Title}" VerticalAlignment="Center" TextWrapping="Wrap" TextTrimming="WordEllipsis"/>
                                 <Button Margin="0,0,1,0" Background="Transparent" Name="CloseButton" Foreground="White" Grid.Column="1" controls:BackgroundSwitchElement.MouseHoverBackground="Red" controls:BackgroundSwitchElement.MouseDownBackground="Red" Command="interactivity:ControlCommands.Close" IsCancel="True" Height="28" Style="{StaticResource ButtonCustom}" Width="44" Padding="9">
                                     <Path Fill="{Binding ElementName=CloseButton,Path=Foreground}" Style="{StaticResource ClosePathStyle}"/>
                                 </Button>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/RadioButton.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/RadioButton.xaml
index 34f08e2f..29a84493 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/RadioButton.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/RadioButton.xaml
@@ -23,7 +23,7 @@
     </Style>
 
     <Style x:Key="RadioGroupItemSingle" BasedOn="{StaticResource RadioGroupItemBaseStyle}" TargetType="RadioButton">
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
     </Style>
 
     <Style x:Key="RadioGroupItemVerticalFirst" BasedOn="{StaticResource RadioGroupItemBaseStyle}" TargetType="RadioButton">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Rectangle.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Rectangle.xaml
new file mode 100644
index 00000000..c5331aa6
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Rectangle.xaml
@@ -0,0 +1,26 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                    xmlns:controls="clr-namespace:HandyControl.Controls">
+
+    <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../Basic/Converters.xaml"/>
+    </ResourceDictionary.MergedDictionaries>
+
+    <Style x:Key="RectangleCircular" TargetType="Rectangle">
+        <Setter Property="controls:RectangleAttach.Circular" Value="True"/>
+    </Style>
+
+    <Style x:Key="RectangleFocusVisual" TargetType="Rectangle">
+        <Setter Property="Margin" Value="-2"/>
+        <Setter Property="Opacity" Value=".6"/>
+        <Setter Property="SnapsToDevicePixels" Value="True"/>
+        <Setter Property="Stroke" Value="{DynamicResource SecondaryBorderBrush}"/>
+        <Setter Property="StrokeThickness" Value="2"/>
+        <Setter Property="StrokeDashArray" Value="1 1"/>
+    </Style>
+
+    <Style x:Key="RectangleFocusVisualCircular" BasedOn="{StaticResource RectangleFocusVisual}" TargetType="Rectangle">
+        <Setter Property="controls:RectangleAttach.Circular" Value="True"/>
+    </Style>
+
+</ResourceDictionary>
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/RichTextBox.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/RichTextBox.xaml
index 068f3069..ad0f3ce7 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/RichTextBox.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/RichTextBox.xaml
@@ -2,13 +2,17 @@
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                     xmlns:controls="clr-namespace:HandyControl.Controls">
 
+    <ResourceDictionary.MergedDictionaries>
+        <ResourceDictionary Source="../Basic/Sizes.xaml"/>
+    </ResourceDictionary.MergedDictionaries>
+
     <Style x:Key="TextBoxBaseBaseStyle" TargetType="TextBoxBase">
         <Setter Property="Background" Value="{DynamicResource RegionBrush}"/>
         <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>
         <Setter Property="Foreground" Value="{DynamicResource PrimaryTextBrush}"/>
         <Setter Property="BorderThickness" Value="1"/>
         <Setter Property="CaretBrush" Value="{DynamicResource PrimaryTextBrush}"/>
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
         <Setter Property="KeyboardNavigation.TabNavigation" Value="None"/>
         <Setter Property="HorizontalContentAlignment" Value="Left"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/Style.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/Style.xaml
index 7db3d20e..fec3ed7e 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/Style.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/Style.xaml
@@ -66,6 +66,7 @@
         <ResourceDictionary Source="GridSplitter.xaml"/>
         <ResourceDictionary Source="Col.xaml"/>
         <ResourceDictionary Source="Card.xaml"/>
+        <ResourceDictionary Source="Rectangle.xaml"/>
     </ResourceDictionary.MergedDictionaries>
 
 </ResourceDictionary>
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml
index 5da521e4..f4668d98 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/TabControl.xaml
@@ -249,7 +249,7 @@
     </Style>
 
     <Style x:Key="TabItemCapsuleSingle" BasedOn="{StaticResource TabItemCapsuleBaseStyle}" TargetType="TabItem">
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
     </Style>
 
     <Style x:Key="TabItemCapsuleVerticalFirst" BasedOn="{StaticResource TabItemCapsuleBaseStyle}" TargetType="TabItem">
diff --git a/src/Shared/HandyControl_Shared/Themes/Styles/ToggleButton.xaml b/src/Shared/HandyControl_Shared/Themes/Styles/ToggleButton.xaml
index 2d2c7a3d..b1073799 100644
--- a/src/Shared/HandyControl_Shared/Themes/Styles/ToggleButton.xaml
+++ b/src/Shared/HandyControl_Shared/Themes/Styles/ToggleButton.xaml
@@ -278,7 +278,7 @@
     </Style>
 
     <Style x:Key="ToggleButtonGroupItemSingle" BasedOn="{StaticResource ToggleButtonGroupItemBaseStyle}" TargetType="ToggleButton">
-        <Setter Property="controls:BorderElement.CornerRadius" Value="4"/>
+        <Setter Property="controls:BorderElement.CornerRadius" Value="{StaticResource DefaultCornerRadius}"/>
     </Style>
 
     <Style x:Key="ToggleButtonGroupItemVerticalFirst" BasedOn="{StaticResource ToggleButtonGroupItemBaseStyle}" TargetType="ToggleButton">
diff --git a/src/Shared/HandyControl_Shared/Tools/Converter/RectangleCircularConverter.cs b/src/Shared/HandyControl_Shared/Tools/Converter/RectangleCircularConverter.cs
new file mode 100644
index 00000000..5e2e818d
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Tools/Converter/RectangleCircularConverter.cs
@@ -0,0 +1,31 @@
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace HandyControl.Tools.Converter
+{
+    public class RectangleCircularConverter : IMultiValueConverter
+    {
+        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (values.Length == 2 && values[0] is double width && values[1] is double height)
+            {
+                if (width < double.Epsilon || height < double.Epsilon)
+                {
+                    return .0;
+                }
+
+                var min = Math.Min(width, height);
+                return min / 2;
+            }
+
+            return DependencyProperty.UnsetValue;
+        }
+
+        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
+        {
+            throw new NotSupportedException();
+        }
+    }
+}