/** reset the renderer */
 protected void reset() {
   setBackground(ConflictColors.BGCOLOR.get());
   setForeground(ConflictColors.FGCOLOR.get());
   setBorder(null);
   setIcon(null);
   setToolTipText(null);
 }
 protected void renderForeground(
     ListMergeModel<Node>.EntriesTableModel model,
     RelationMember member,
     int row,
     int col,
     boolean isSelected) {
   Color fgc = ConflictColors.FGCOLOR.get();
   if (col == 0
       && model.isParticipatingInCurrentComparePair()
       && !model.getListMergeModel().isFrozen()) {
     fgc = ConflictColors.FGCOLOR_PARTICIPATING_IN_COMPARISON.get();
   }
   setForeground(fgc);
 }