I decided to stop developling MyBB addons. You can find details here: lukasamd/MyBB-View_Unread_posts#25
This plugin colorize usernames according to the groups settings. It can format nicknames in:
- moderators list
- topic author in forum view
- last post author in forum view
- sender in private messages list
- news author in portal view
- topic author in search results
- last posts author in search results
- announcements author
This plugin add link to author website (only for web spiders). If you do not want this, do not use plugin, or make donate and contact author.