     private function addSystemMouseHandlers():void
     {
         systemManager.getSandboxRoot().addEventListener(
-			MouseEvent.MOUSE_UP, mouseEventHandler, true /* useCapture */);
+            MouseEvent.MOUSE_UP, mouseEventHandler, true /* useCapture */);
 
         systemManager.getSandboxRoot().addEventListener(
-			SandboxMouseEvent.MOUSE_UP_SOMEWHERE, mouseEventHandler);             
+            SandboxMouseEvent.MOUSE_UP_SOMEWHERE, mouseEventHandler);             
     }
 
     /**

    private function removeSystemMouseHandlers():void
    {
        systemManager.getSandboxRoot().removeEventListener(
			MouseEvent.MOUSE_UP, mouseEventHandler, true /* useCapture */);

        systemManager.getSandboxRoot().removeEventListener(
			SandboxMouseEvent.MOUSE_UP_SOMEWHERE, mouseEventHandler);
    }
    
    /**

[Style(name="focusAlpha", type="Number", inherit="no", theme="spark")]

/**
 *  @copy spark.components.supportClasses.GroupBase#style:focusColor
 *   
 *  @default 0x70B2EE
 *  
 *  @langversion 3.0
 *  @playerversion Flash 10
