private boolean isRainbowColorsModified() {
    for (TextAttributesKey key : RainbowHighlighter.RAINBOW_COLOR_KEYS) {
      if (!myEditedScheme.getAttributes(key).equals(myOriginalScheme.getAttributes(key)) ) {
        return true;
      }
    }
    return false;
  }
private boolean isRainbowColorsModified()