      *  @playerversion AIR 3
      *  @productversion Flex 4.5.2
      */
-    protected var contentBackgroundClass:Class;
-    
-    /**
-     *  Corner radius of the <code>backgroundColor</code> "frame". Also controls the inset
-     *  of the <code>contentGroup</code>.
+    protected var contentBackgroundInsetClass:Class;
+    
+    /**
+     *  Corner radius of the <code>backgroundColor</code> "frame".
      *  
      *  @langversion 3.0
      *  @playerversion AIR 3

            case DPIClassification.DPI_320:
            {
                backgroundCornerRadius = 16;
                contentBackgroundClass = spark.skins.mobile320.assets.CalloutContentBackground;
                backgroundGradientHeight = 220;
                frameThickness = 16;
                arrowWidth = 104;

            {
                // default DPI_160
                backgroundCornerRadius = 8;
                contentBackgroundInsetClass = spark.skins.mobile160.assets.CalloutContentBackground;
                backgroundGradientHeight = 110;
                frameThickness = 8;
                arrowWidth = 52;
