Works as intended.

Works on pinned tabs, which is what i hoped.

I would love it it could ONLY work on pinned and that the background color was changeable, but that's not really a fault, just a feature request

When tab title has any number between brackets, the extension changes tab badge count, even though there are no unread posts, just number in brackets. This includes bookmarks, which keep the badge count somehow, even after the extension is removed.