}
@Override
public void configureRegistry(IConfigRegistry configRegistry) {
configRegistry.registerConfigAttribute(
CellConfigAttributes.CELL_PAINTER, new BeveledBorderDecorator(
new ColumnGroupHeaderTextPainter()),
DisplayMode.NORMAL, GridRegion.COLUMN_GROUP_HEADER);
// We are not setting a special configuration for rendering grid lines,
// as this would override the column header configuration. This is
// because the the column group header is part of the column header