wxiaoguang a8fd76557b
Better builtin avatar generator (#17707)
This PR fixes the builtin avatar generator.

1. The random background color makes some images very dirty. So now we only use white background for avatars.
2. We use left-right mirror avatars to satisfy #14799
3. Fix a small padding error in the algorithm
2021-11-20 01:10:41 +08:00
..
2020-11-28 01:12:22 -05:00