<?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>