in extra.less
.avatar {
border-radius: 4px;
vertical-align: top;
overflow: hidden;
display: inline-flex;
align-items: center;
justify-content: center;
line-height: 1;
-webkit-clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0...