  *
  *  @includeExample examples/FxToggleButtonExample.mxml
  */
-public class FxToggleButton extends FxButton
+public class FxToggleButton extends FxButton implements ISelectableRenderer
 {
     include "../core/Version.as";
 

        invalidateButtonState();
    }

    //--------------------------------------------------------------------------
    //
    //  States

    public function FxToggleButton()
    {
        super();

        flags = BitFlagUtil.update(flags, allowDeselectionFlag, true);
    }
    
    // -----------------------------------------------------------------------
