message: Change "Mark as unread" indicator to green
diff: @@ -520,6 +520,11 @@ Hidden content area created to increase hover target
  margin-top: 8px;
  }
  +/* Change color of marker if there are only discussion marked as unread */
  +.notification-indicator[data-ga-click$=":read"] .unread {
  + background: linear-gradient(#34d058, #28a745)
  +}
  +
  /* +/- Pseudo elements on diffs */
  .refined-github-diff-signs .blob-code-addition:before,
  .refined-github-diff-signs .blob-code-deletion:before {
  