added two editors

src/Shared/HandyControl_Shared/Themes/Styles/Base/ButtonGroupBaseStyle.xaml

@@ -1,6 +1,7 @@
 <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">
+                    xmlns:controls="clr-namespace:HandyControl.Controls"
+                    xmlns:tools="clr-namespace:HandyControl.Tools">
 
     <ItemsPanelTemplate x:Key="ButtonGroupHorizontalItemsPanelTemplate">
         <UniformGrid FocusVisualStyle="{x:Null}" Rows="1"/>
@@ -10,7 +11,10 @@
         <UniformGrid FocusVisualStyle="{x:Null}" Columns="1"/>
     </ItemsPanelTemplate>
 
+    <tools:ButtonGroupItemStyleSelector x:Key="ButtonGroupItemStyleSelector"/>
+
     <Style x:Key="ButtonGroupBaseStyle" TargetType="controls:ButtonGroup">
+        <Setter Property="ItemContainerStyleSelector" Value="{StaticResource ButtonGroupItemStyleSelector}"/>
         <Setter Property="VerticalAlignment" Value="Top"/>
         <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
         <Setter Property="Focusable" Value="False"/>