resultsOutline.setGridColor(TreeUtils.getDarkerColor(backColor));
OutlineColumn[] columns = OutlineColumn.values();
for (int i = 0; i < columns.length; i++) {
ETableColumn nodeColumn = (ETableColumn) columnModel.getColumn(i + 1);
nodeColumn.setNestedComparator(new OutlineComparableComparator(nodeColumn));
TableCellRenderer cellRenderer = OutlineColumn.values()[i].getRenderer(backColor);
if (cellRenderer != null) {
nodeColumn.setCellRenderer(cellRenderer);
}