mantis显示头像的配置
http://www.mantisbt.org/docs/master-1.2.x/en/administration_guide.html
- $g_show_avatar
-
Show user avatar (default OFF); the current implementation is based on http://www.gravatar.com, users will need to register there with the same email address used in this MantisBT installation to have their avatar shown.
Upon registration or avatar change, it takes some time for the updated gravatar images to show on sites.