<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" 
    xmlns:renderers="renderers.*">
    
    <mx:Style source="myStyle.css"/>
    
    <mx:List width="200" height="500" dataProvider="{dp}"
        styleName="myawesomelist">
        <mx:itemRenderer>
            <mx:Component>
                <renderers:MyCustomRenderer/>
            </mx:Component>
        </mx:itemRenderer>
    </mx:List>
    <mx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;
            private var dp:ArrayCollection = new ArrayCollection(['one','two','three'])
        ]]>
    </mx:Script>
</mx:Application>