private void displayStatus(JComponent parent, String title, String message, int dialogType) {

		Component parentComponent = parent;
		if (parentComponent == null) {
			parentComponent = tool.getToolFrame();
		}

		switch (dialogType) {
			case OptionDialog.PLAIN_MESSAGE:
				Msg.showInfo(getClass(), parent, title, message);
				break;
			case OptionDialog.INFORMATION_MESSAGE:
				Msg.showInfo(getClass(), parent, title, message);
				break;
			case OptionDialog.WARNING_MESSAGE:
				Msg.showWarn(getClass(), parent, title, message);
				break;
			case OptionDialog.ERROR_MESSAGE:
				Msg.showError(getClass(), parent, title, message);
				break;
		}
	}
Reload the marked differences in the diff panel.
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/ProgramDiffPlugin.java