code: private TwoColors getCheckBoxBulletColors(CommonControlState type) {
          switch (type) {
  
          case DISABLED:
          case DISABLED_SELECTED:
              return buttonbulletDisabled;
  
          case ENABLED:
          case PRESSED:
          case SELECTED:
          case PRESSED_SELECTED:
              return buttonBulletEnabled;
          }
  
          return null;
      }
docs: Get the colors to use for the check mark.
  
  @param  type the state.
  
  @return the color set.