This plugins automatically assign a user photo with their initials, when they are registered. The image is generated from UI Avatars. The initials generated in the photo are in following priority:
1) Firstname Lastname 2) Firstname 3) Lastname 4) Username 5) Email
Whichever found first will be used as the initials.
To install this plugin, search for its package name on the Plugin Store and click “Install”.