 import mx.managers.ISystemManager;
 import mx.styles.CSSStyleDeclaration;
 import mx.styles.StyleManager;
+import mx.utils.BitFlagUtil;
 import mx.utils.LoaderUtil;
+import spark.layouts.supportClasses.LayoutBase;
 
 use namespace mx_internal;
 

            sm.stage.colorCorrection = value;
    }
    
    //--------------------------------------------------------------------------
    //
    //  Compile-time pseudo-properties


    //--------------------------------------------------------------------------
    //
    //  Class constants
    //
    //--------------------------------------------------------------------------
    
    /**
     *  @private
     */
    private static const CONTROLS_PROPERTY_FLAG:uint = 1 << 0;

    /**
     *  @private
     */
    private static const LAYOUT_PROPERTY_FLAG:uint = 1 << 1;

    //--------------------------------------------------------------------------
    //
    //  Class properties
    //
    //--------------------------------------------------------------------------
