User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36
Steps to reproduce:
I upgraded to latest MacOS 12.0.1 (Monterey) and installed latest Thunderbird Beta (94.0b4).
In the left sidebar (Folder list), folders with unread messages does not have bold font. In the messages list same issue, the unread messages are not bold so is impossible to view which messages are unread.
The folder name that contains unread message must have a bold font like previous behavior.
The messages in unread status must have a bold font.