{% assign bitmap_mode = site.data.config.bitmap_mode | default: site.theme_config.bitmap_mode %} <a href=“facebook.com/{{ include.username }}”>

<span class="icon icon--facebook">
  {% if bitmap_mode == true %}
    <img src="/assets/icons/icon-facebook.png"/>
  {% else %}
    {% include icon-facebook.svg %}
  {% endif %}
</span>
<span class="username">{{ include.username }}</span>

</a>