FLex组件之滚动条(ScrollBar)CSS美化

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Style>
ScrollBar
{
    /*划动块图片皮肤*/
    thumbDownSkin: Embed(source="scrollBar/thumb.gif",
        scaleGridTop=2,                 
        scaleGridLeft=2, 
        scaleGridBottom=4, 
        scaleGridRight=4
    );
    thumbOverSkin: Embed(source="scrollBar/thumb.gif",
        scaleGridTop=2,                 
        scaleGridLeft=2, 
        scaleGridBottom=4, 
        scaleGridRight=4
    );
    thumbUpSkin: Embed(source="scrollBar/thumb.gif",
        scaleGridTop=2,                 
        scaleGridLeft=2, 
        scaleGridBottom=4, 
        scaleGridRight=4
    );
    /*划动块中间图片(翻页图片)皮肤*/
    thumbIcon: Embed("scrollBar/thumbIcon.gif");
    /*轨迹图片(划动路径图片)皮肤*/
    trackSkin: Embed("scrollBar/trackBack.jpg");