modified some styles

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>