@Override
  public ColorDescriptor @NotNull [] getColorDescriptors() {
    // todo: make preview for it

    final ColorKey[] colorKeys = XmlTagTreeHighlightingColors.getColorKeys();
    final ColorDescriptor[] colorDescriptors = new ColorDescriptor[colorKeys.length];

    for (int i = 0; i < colorDescriptors.length; i++) {
      colorDescriptors[i] = new ColorDescriptor(XmlBundle.message("options.html.attribute.descriptor.tag.tree", i + 1),
                                                colorKeys[i], ColorDescriptor.Kind.BACKGROUND);
    }

    return colorDescriptors;
  }
@Override
  public ColorDescriptor @NotNull [] getColorDescriptors()