 import flash.display.DisplayObject;
 import flash.display.Graphics;
 
-import mx.core.DeviceDensity;
+import mx.core.DPIClassification;
 
 import spark.skins.mobile.supportClasses.SelectableButtonSkinBase;
 import spark.skins.mobile160.assets.RadioButton_down;

                
                break;
            }
            case DeviceDensity.PPI_240:
            {
                upIconClass = spark.skins.mobile240.assets.RadioButton_up;
                upSelectedIconClass = spark.skins.mobile240.assets.RadioButton_up;

        layoutPaddingTop = 0;
        layoutPaddingBottom = 0;
        
        switch (applicationDPI)
        {
            case DPIClassification.DPI_320:
            {
                upIconClass = spark.skins.mobile320.assets.RadioButton_up;
                upSelectedIconClass = spark.skins.mobile320.assets.RadioButton_up;
