public final TableCellRenderer getHeaderRendererOverride(int col) {
		ConfigurableColumnTableModel configurableModel = getConfigurableColumnTableModel();
		if (configurableModel != null) {
			int modelIndex = convertColumnIndexToModel(col);
			TableCellRenderer renderer = configurableModel.getHeaderRenderer(modelIndex);
			if (renderer != null) {
				return renderer;
			}
		}
		return null;
	}
Performs custom work to locate header renderers for special table model types.  The headers
are located and installed at the time the table's model is set.

@param col the column
@return the header cell renderer
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/GTable.java