antd-theme-generator/node_modules/less/test/less-bom/import-reference-issues/mixin-1968.less

This a script to generate color specific styles less file and which you can use to change theme dynamically in browser

.mixin-no-parent-selector() {
  background-color: red;
}
.mixin-with-parent-selector() {
  &:first-child{ //  USING AN & SELECTOR HERE
    background-color: blue;
 }
}