      *  @playerversion AIR 2.5
      *  @productversion Flex 4.5
      */
-    public function createTabBarShowEffect():IEffect
+    protected function createTabBarShowEffect():IEffect
     {
         return createTabBarVisibilityEffect();
     }

    //
    //--------------------------------------------------------------------------
    
    [SkinPart(required="false")]
    /**
     *  A skin part that defines the tab bar of the navigator. 

    //  activeNavigator
    //----------------------------------
    
    [Bindable("change")]
    /**
     *  Returns the active navigator for the TabbedViewNavigator.  Only one
     *  navigator can be active at a time.  The active navigator can be
