void nextDiff() {
		tool.clearStatusInfo();
		if (diffControl.hasNext()) {
			diffControl.next();
		}
		setProgram2Selection(new ProgramSelection(p2AddressFactory, getDiffHighlightBlock()));
	}
Set the highlight based on the current program differences, but do not set the highlight for
set of addresses to be ignored.
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/ProgramDiffPlugin.java