strings, each being a single font name. For example:</p>
  <aside class="example" id="example-14"><div class="marker">
      <a class="self-link" href="#example-14">Example<bdi> 14</bdi></a>
    </div>

  <pre><code class="json hljs" aria-busy="false">{
    <span class="hljs-attr">"Primary font"</span>: {
      <span class="hljs-attr">"value"</span>: <span class="hljs-string">"Comic Sans MS"</span>,
      <span class="hljs-attr">"type"</span>: <span class="hljs-string">"font"</span>
    },
    <span class="