Style Flex


    
    xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark">
    
        @namespace mx "library://ns.adobe.com/flex/mx";
        mx|Button {
            upSkin: Embed(source='a.swf',
            symbol='MyUpSkin');
            overSkin: Embed(source='a.swf',
            symbol='MyOverSkin');
            downSkin: Embed(source='a.swf',
            symbol='MyDownSkin');
        }