message: Have COLOR_REGEX constant
diff: @@ -28,11 +28,7 @@ emojione.imagePathSVG = 'emojione/svg/';
  emojione.imageType = 'svg';
  const EMOJI_REGEX = new RegExp(emojione.unicodeRegexp+"+", "gi");
  -const COLOR_REGEX = /^[#a-z0-9]+$/;
  -const ALLOWED_CSS = {
  - "background-color": COLOR_REGEX,
  - "color": COLOR_REGEX,
  -};
  +const COLOR_REGEX = /#[0-9a-fA-F]{6}/;
  /* modified from https://github.com/Ranks/emojione/blob/master/lib/js/emojione.js
  * because we want to include emoji shortnames in title text
  @@ -160,7 +156,7 @@ var sanitizeHtmlParams = {
  const customAttributeValue = attribs[customAttributeKey];
  if (customAttributeValue &&
  typeof customAttributeValue === 'string' &&
  - /#[0-9a-fA-F]{6}/.test(customAttributeValue)
  + COLOR_REGEX.test(customAttributeValue)
  ) {
  style += cssAttributeKey + ":" + customAttributeValue + ";";
  delete attribs[customAttributeKey];
  