Removing folder icons from the Flex Tree control

<mx:Style> Tree { folderClosedIcon: ClassReference(null); folderOpenIcon: ClassReference(null); } </mx:Style> The long answer? Full code after the jump. <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white"> <mx:XML id="dp"> <mlb> <league label="American League"> <division label="East"> <team label="Boston" /> <team label="New York" /> <team label="Toronto" /> <team label="Baltimore" /> <team label="Tampa Bay" /> </division> <division label="Central"> <team label="Cleveland" /> <team label="Detroit" /> <team label="Minnesota" /> <team label="Chicago" /> <team label="Kansas City" /> </division> <division label="West"> <team label="Los Angeles" /> <team label="Seattle" /> <team label="Oakland" /> <team label="Texas" /> </division> </league> </mlb> </mx:XML> <mx:Style> Tree { folderClosedIcon: ClassReference(null); folderOpenIcon: ClassReference(null); } </mx:Style> <mx:Tree id="TreeProject" dataProvider="{dp.league}" labelField="@label" iconField="@icon" showRoot="true" width="320" rowCount="9" /> </mx:Application>