@Override
	public boolean acceptsType(int category, Class<?> proxyObjectClass) {
		if (!Variable.class.isAssignableFrom(proxyObjectClass)) {
			return false;
		}
		return (category == FieldFormatModel.FUNCTION_VARS);

	}
Creates a field with "XREF[m,n]:"
<br>
Where:<br>
     m is the number of cross references <br>
     n is the number of off-cut cross references <br><br>
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/field/VariableXRefHeaderFieldFactory.java