The icon shown above is the fa-circle-o one used everywhere else for “regular” notification level, and it gets greyed-out. It should be (blue) fa-circle:
Seems impossible to fix this by any means other than asking for it to be corrected in the code, hence the bug report…
A bug report means something is broken, preventing normal/typical use of Discourse.
While an incorrect icon can certainly be confusing, it doesn’t prevent normal use of Discourse. We still want to fix ux issues (as we did here), but we try to keep the bug category to things that truly break something.