@NlsContexts.Tooltip
  @NotNull
  public static String createTooltipText(@NotNull @NlsContexts.Tooltip String text, @Nullable @Nls String appendix) {
    HtmlBuilder result = new HtmlBuilder();
    result.append(text);
    if (appendix != null) {
      result.br();
      result.append(HtmlChunk.div("margin-top:5px; font-size:small").addText(appendix));
    }
    return result.wrapWithHtmlBody().toString();
  }
@NlsContexts.Tooltip
  @NotNull
  public static String createTooltipText(@NotNull @NlsContexts.Tooltip String text, @Nullable @Nls String appendix)