@Override
	public void clear(Address start, Address end) {
		checkModifiable();
		((ModifiableAddressSetCollection) markers).deleteRange(start, end);
		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