Styling Alert controls in Flex using the StyleManager class and setStyle() methods

The following example shows how you can style a Flex Alert control using the static StyleManager.getStyleDeclaration() method, and the setStyle() method

<? xml version="1.0" encoding="utf-8" ?>
<!--  http://blog.flexexamples.com/2008/02/29/styling-alert-controls-in-flex-using-the-stylemanager-class-and-setstyle-methods/  -->
< mx:Application  xmlns:mx ="http://www.adobe.com/2006/mxml"
        layout ="vertical"
        verticalAlign ="middle"
        backgroundColor ="white"
        creationComplete ="init();" >

     < mx:Script >
         <![CDATA[
            import mx.controls.Alert;
            import mx.styles.StyleManager;

            private var alert:Alert;
            private var alertCSS:CSSStyleDeclaration;

            private function init():void {
                alertCSS = StyleManager.getStyleDeclaration("Alert");
            }

            private function showAlert(color:Object):void {
                alertCSS.setStyle("modalTransparencyColor", color);
                alertCSS.setStyle("themeColor", color);
                alert = Alert.show("The quick brown fox");
            }
         ]]>
     </ mx:Script >

     < mx:ApplicationControlBar  dock ="true" >
         < mx:Button  label ="Red"
                themeColor ="red"
                click ="showAlert('red');"   />
         < mx:Button  label ="Orange"
                themeColor ="haloOrange"
                click ="showAlert('haloOrange');"   />
         < mx:Button  label ="Yellow"
                themeColor ="yellow"
                click ="showAlert('yellow');"   />
         < mx:Button  label ="Green"
                themeColor ="haloGreen"
                click ="showAlert('haloGreen');"   />
         < mx:Button  label ="Blue"
                themeColor ="haloBlue"
                click ="showAlert('haloBlue');"   />
     </ mx:ApplicationControlBar >

</ mx:Application >