code: public void setCellRenderer(ListCellRenderer cellRenderer) {
          // Apply this to both lists
          sourceList.setCellRenderer(cellRenderer);
          chosenList.setCellRenderer(cellRenderer);
          helperList.setCellRenderer(cellRenderer);
      }
docs: Sets the delegate that's used to paint each cell in the list.
  <p>
  The default value of this property is provided by the ListUI delegate,
  i.e. by the look and feel implementation.
  <p>
  
  @param cellRenderer the <code>ListCellRenderer</code> that paints list
  cells
  @see #getCellRenderer