@Override
		public Component getTableCellRendererComponent(GTableCellRenderingData data) {

			JLabel label = (JLabel) super.getTableCellRendererComponent(data);

			RefType value = (RefType) data.getValue();
			label.setText(value.getDisplayString());
			return label;
		}
This table field displays the reference type for the reference 
associated with a row in the table.
Ghidra/Features/Base/src/main/java/ghidra/util/table/field/ReferenceTypeTableColumn.java