<?xml version="1.0"?>
<!-- http://blog.flexexamples.com/2008/01/17/setting-the-background-color-and-background-alpha-on-a-flex-popupbutton-controls-pop-up-menu/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
		layout="vertical"
		verticalAlign="top"
		backgroundColor="white" viewSourceURL="srcview/index.html">

    <mx:Script>
        <![CDATA[
            import mx.controls.Menu;
            import mx.events.MenuEvent;

			[Bindable]
            private var menu:Menu;

            private function initMenu():void {
            	menu = new Menu();
                menu.dataProvider = arr;
                menu.setStyle("themeColor", "black");
            }
        ]]>
    </mx:Script>

	<mx:Array id="arr">
		<mx:Object label="Button" />
		<mx:Object label="ButtonBar" />
		<mx:Object label="ColorPicker" />
		<mx:Object label="ComboBox" />
	</mx:Array>

	<mx:Style>
		.myPop {
            backgroundAlpha: 0.7;
            backgroundColor: black;
            borderStyle: none;
            color: white;
		}
	</mx:Style>

	<mx:ApplicationControlBar dock="true">
		<mx:PopUpButton id="popUpButton"
				label="Select a control..."
				popUp="{menu}"
				popUpStyleName="myPop"
				preinitialize="initMenu();" />
	</mx:ApplicationControlBar>

	<mx:VBox backgroundColor="haloSilver"
			width="100%"
			height="100%" />

</mx:Application>