Is there ways to add few default avatars that users can choose from and background profiles instead of them have to upload themselves to make their page look good
Not at this time, no, but I have heard the request before.
If you’d like to submit a community pull request that adds this feature, that’d be great!
This request is completed – you can specify a set of default avatars for new users in the site settings.
The UI is not awesome for it, but it works!