private String getRefTypeDisplayString(Reference reference) {
		RefType refType = reference.getReferenceType();
		if (reference instanceof ThunkReference) {
			return "(T)";
		}
		if (refType instanceof DataRefType) {
			if (refType.isRead() || refType.isIndirect()) {
				return "(R)";
			}
			else if (refType.isWrite()) {
				return "(W)";
			}
			else if (refType.isData()) {
				return "(*)";
			}
		}
		if (refType.isCall()) {
			return "(c)";
		}
		else if (refType.isJump()) {
			return "(j)";
		}
		return "";
	}
Constructs a new XRefFieldFactory based on the provider and model.

@param name the owner of this field factory
@param model the model that the field belongs to.
@param hlProvider the HightLightProvider.
@param displayOptions the Options for display properties.
@param fieldOptions the Options for field specific properties.
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/field/XRefFieldFactory.java