         layoutPaddingTop = 0;
         layoutPaddingBottom = 0;
         
-        switch (authorDensity)
+        switch (applicationDPI)
         {
-            case DeviceDensity.PPI_320:
+            case DPIClassification.DPI_320:
             {
                 upIconClass = spark.skins.mobile320.assets.CheckBox_up;
                 upSelectedIconClass = spark.skins.mobile320.assets.CheckBox_up;

import flash.display.DisplayObject;
import flash.display.Graphics;

import mx.core.DeviceDensity;

import spark.skins.mobile.supportClasses.SelectableButtonSkinBase;
import spark.skins.mobile160.assets.CheckBox_down;

                
                break;
            }
            case DPIClassification.DPI_240:
            {
                upIconClass = spark.skins.mobile240.assets.CheckBox_up;
                upSelectedIconClass = spark.skins.mobile240.assets.CheckBox_up;
