private void initSnapshotOptions() {
		ToolOptions opt = tool.getOptions(OPTIONS_TITLE);
		opt.registerOption(SNAPSHOT_PERIOD_OPTION, snapshotPeriodMin, null,
			"The time before creating an auto-save of a program");
		snapshotPeriodMin = opt.getInt(SNAPSHOT_PERIOD_OPTION, snapshotPeriodMin);
		if (snapshotPeriodMin < 0) {
			opt.setInt(SNAPSHOT_PERIOD_OPTION, 0);
			snapshotPeriodMin = 0;
		}

		opt.addOptionsChangeListener(this);
	}
Initialize the look and feel options.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/misc/RecoverySnapshotMgrPlugin.java