                 
                 break;
             }
-            case DeviceDensity.PPI_240:
+            case DPIClassification.DPI_240:
             {
                 trackWidth = 192;
                 trackHeight = 13;

        useChromeColor = true;
        
        // set the right assets and dimensions to use based on the screen density
        switch (authorDensity)
        {
            case DeviceDensity.PPI_320:
            {
                trackWidth = 320;
                trackHeight = 18;
                
                visibleTrackWidth = 280;
                visibleTrackLeftOffset = 20;
                

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

import mx.core.DPIClassification;

import spark.components.Button;
import spark.skins.mobile.supportClasses.MobileSkin;
