private TaintLabel updateMarks(TaintLabel tlabel, Set<TaintLabel> marks) {
		for (TaintLabel existingLabel : marks) {
			if (existingLabel.equals(tlabel)) {
				existingLabel.toggle();
				plugin.getTool().contextChanged(plugin.getDecompilerProvider());
				return existingLabel;
			}
		}

		marks.add(tlabel);
		plugin.getTool().contextChanged(plugin.getDecompilerProvider());
		return tlabel;
	}
Container for all the decompiler elements the users "selects" via the menu.
This data is used to build queries.
Ghidra/Features/DecompilerDependent/src/main/java/ghidra/app/plugin/core/decompiler/taint/AbstractTaintState.java