For [~username] mentions - looking to only text render the person's first name. Rendering their full name is a little too formal for my organisation.
Found this but nothing else. Have had a good search of this forum but nothing. Atlassian documentation wiki is down at the moment which doesn't help...
![Photo of Dave Donnelly [Sensata]](https://avatar-management--avatars.us-west-2.prod.public.atl-paas.net/initials/DD-5.png)