Flex中如何给Accordion的各个头部文字设置不同颜色的例子

<?xml version="1.0" encoding="utf-8"?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
        layout="vertical" 
        verticalAlign="middle" 
        backgroundColor="white"> 
  
    <mx:Style> 
        AccordionHeader { 
            fillColors: black, black; 
            fillAlphas: 1, 1; 
            textRollOverColor: white; 
            textSelectedColor: white; 
            themeColor: black; 
        } 
    </mx:Style> 
  
    <mx:Script> 
        <![CDATA[ 
            private function init():void { 
                accordion.getHeaderAt(0).setStyle("color", "red"); 
                accordion.getHeaderAt(1).setStyle("color", "haloOrange"); 
                accordion.getHeaderAt(2).setStyle("color", "yellow"); 
                accordion.getHeaderAt(3).setStyle("color", "haloGreen"); 
                accordion.getHeaderAt(4).setStyle("color", "haloBlue"); 
            } 
        ]]> 
    </mx:Script> 
  
    <mx:Accordion id="accordion" 
            width="300" 
            height="200" 
            creationComplete="init();"> 
        <mx:VBox label="Red" /> 
        <mx:VBox label="Orange" /> 
        <mx:VBox label="Yellow" /> 
        <mx:VBox label="Green" /> 
        <mx:VBox label="Blue" /> 
    </mx:Accordion> 
  
</mx:Application>