transformers/docs/source/_static/css/code-snippets.css

.highlight .c1{
    color: #999
}

.highlight .nn, .highlight .k, .highlight .s1, .highlight .nb, .highlight .bp {
    color: #FB8D68;
}

.highlight .kn, .highlight .nv, .highlight .s2 {
    color: #6670FF;
}