void clearPixelSlider_stateChanged(ChangeEvent e)
    {
        JSlider source = (JSlider)e.getSource();
        if( !source.getValueIsAdjusting())
        {
            int value = (int)source.getValue();
            switch( value )
            {
                case 0: setClearPixelColorSample( new Color(js.CLEAR_PIXEL_0) ); break;
                case 1: setClearPixelColorSample( new Color(js.CLEAR_PIXEL_1) ); break;
                case 2: setClearPixelColorSample( new Color(js.CLEAR_PIXEL_2) ); break;
                case 3:
                default: setClearPixelColorSample( new Color(js.CLEAR_PIXEL_3) ); break;
            }
       }
    }