如何生成一大批匿名用户头像？可基于昵称生成文字型图片，亦可随机到一套无版权的头像库图片。本仓库给出一套可行的实现方案。
- https://github.com/arvinpoddar/vue-animals
- https://github.com/wayou/anonymous-animals
- https://jeffersoncheng.com/Anonymous-Animals
- https://github.com/issue9/identicon
- https://github.com/LasseRafn/php-initial-avatar-generator
- https://github.com/disintegration/letteravatar
- https://github.com/dmester/jdenticon-php
- https://github.com/lxbrvr/pyavagen