discourse/lib/oneboxer/templates/gist_onebox.hbrs

<div class='onebox-result'>
  {{#host}}
    <a href='{{original_url}}' class='source track-link' target="_blank">
      {{#favicon}}<img class='favicon' src="{{favicon}}"> {{/favicon}}{{host}}
    </a>
  {{/host}}
  <div class='onebox-result-body'>
    {{#title}}
      <h3><a href="{{original_url}}" target="_blank">{{title}}</a></h3>
    {{/title}}
    {{#files}}
      <h4>{{filename}}</h4>
      <pre><code>{{content}}</code></pre>
    {{/files}}
  </div>
</div>