oak-frontend-base/es/components/icon/index.xml

<view class="oak-icon  {{ name === '' ? '' : 'oak-icon-' +  name }} {{ color === '' || color === 'primary' || color === 'info' || color === 'error' || color === 'success' || color === 'warning' ? 'oak-icon__' +  (color || 'primary') : ''}} oak-class" style="{{ size ? 'font-size:' + size + 'px;' : '' }} {{ color && color !== 'primary'  && color !== 'info'&& color !== 'error'&& color !== 'success'&& color !== 'warning' ? 'color:' + color : '' }}"></view>