@Override
	public void add(AddressSetView addrSet) {
		checkModifiable();
		((ModifiableAddressSetCollection) markers).add(addrSet);
		clearAndUpdate();
	}
Returns the Navigator Icon for this marker set

@return the Navigator Icon for this marker set
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/marker/MarkerSetImpl.java