Set the fontSize to 15 and the color to 0x9933FF for myButton instance

       
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
    creationComplete="initApp()">
    <mx:Script>
        public function initApp():void {
            myButton.setStyle("fontSize",15);
            myButton.setStyle("color",0x9933FF);
        }
      </mx:Script>
    <mx:Button id="myButton" label="Click Here" />
</mx:Application>

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24.	Set the fontSize to 15 and the color to 0x9933FF on only the myButton instance

Set the fontSize to 15 and the color to 0x9933FF for myButton instance : Button Style « Components « Flex

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