Using CSS to apply graphical skins
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Style> @namespace mx "http://www.adobe.com/2006/mxml"; mx|Button { overSkin: Embed("a.gif"); upSkin: Embed("b.gif"); downSkin: Embed("a.gif"); } </mx:Style> <mx:Button id="b1" label="Click Me"/> </mx:Application>