chromium/third_party/blink/web_tests/fast/forms/select/menulist-style-color.html

<select>
    <option>Default</option>
</select>

<select style="color:red">
    <option>Red</option>
</select>

<select style="background-color:green">
    <option>Default on green</option>
</select>

<select style="color:red;background-color:green">
    <option>Red on green</option>
</select>