@Nls
  @NotNull
  public static String createNotificationText(@NotNull @Nls String text, @Nullable @Nls String appendix) {
    HtmlBuilder result = new HtmlBuilder();
    result.append(text);
    if (appendix != null) {
      result.br();
      result.append(HtmlChunk.span("color:#" + ColorUtil.toHex(JBColor.gray) + "; font-size:small").addText(appendix));
    }
    return result.wrapWithHtmlBody().toString();
  }
@Nls
  @NotNull
  public static String createNotificationText(@NotNull @Nls String text, @Nullable @Nls String appendix)