 import flash.display.DisplayObject;
 import flash.display.Graphics;
 
-import mx.core.DeviceDensity;
+import mx.core.DPIClassification;
 
 import spark.components.Button;
 import spark.skins.mobile.supportClasses.MobileSkin;

                
                break;
            }
            case DeviceDensity.PPI_240:
            {
                trackWidth = 192;
                trackHeight = 13;

        useChromeColor = true;
        
        // set the right assets and dimensions to use based on the screen density
        switch (applicationDPI)
        {
			case DPIClassification.DPI_320:
			{
				trackWidth = 320;
				trackHeight = 18;
				
                visibleTrackWidth = 280;
                visibleTrackLeftOffset = 20;
                
