Hi all. I have repeatedly tried to delete all the default Thunderbird categories in Settings > Calendar > Categories, but every time i do, and restart Thunderbird, they reappear. I'm on 128.6.0esr 64-bit, no add-ons except for Darko and Allday Tasks, and i've tested this with Allday Tasks removed. Renaming them and THEN deleting them works, but deleting a default category with its default name doesn't. I guess it's a bug and i'm reporting it.