code: public void setShowFlags (int flags, boolean on)
      {
          int oldshow = _showFlags;
  
          if (on) {
              _showFlags |= flags;
          } else {
              _showFlags &= ~flags;
          }
  
          if (oldshow != _showFlags) {
              showFlagsDidChange(oldshow);
          }
      }
docs: Set whether or not to highlight object tooltips (and potentially other scene entities).