code: public void setSmoothing(final boolean SMOOTHING) {
          if (null == smoothing) {
              _smoothing = SMOOTHING;
              fireUpdateEvent(REDRAW_EVENT);
          } else {
              smoothing.set(SMOOTHING);
          }
      }
docs: Defines if the smoothing property should be enabled/disabled.
  At the moment this is only used in the TileSparklineSkin.
  @param SMOOTHING