public void addActions() {
		plugin.getTool()
				.addLocalAction(this, new SaveApplySettingsAction(this, plugin.applySettingsMgr));
		plugin.getTool().addLocalAction(this, new DiffIgnoreAllAction(this));
		plugin.getTool().addLocalAction(this, new DiffReplaceAllAction(this));
		plugin.getTool().addLocalAction(this, new DiffMergeAllAction(this));
	}
The DiffSettingsDialog is used to change the types of differences currently
highlighted. It also allows the user to change the types of differences being
applied and whether labels and/or comments are being merged or replaced.
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/DiffApplySettingsProvider.java