Board Thread:Support Requests - Getting Technical/@comment-34591940-20200914204327/@comment-45117243-20200914205054

Fandom staff won't do that.

The script that you linked can do that, but it's compatability with UCP wikis like yours is still marked as "unknown". You can try by following the directions on the script page.

The users on those forums cannot do it for you, because editing the wiki CSS and JS pages requires being an admin on this wiki.