{# Macro wrapper used by page templates that render images explicitly.
   Most body images flow through pictureify; the post-processor that
   wraps pictureify's output ships in a later release. For v0.1.0 this
   macro is the manual form. #}
{% macro gb_frame(src, alt="", caption="") %}
<figure class="gb-frame">
  {% if caption or alt %}
  <span class="gb-frame__label">{{ (caption or alt) | upper }}</span>
  {% endif %}
  <div class="gb-frame__inner">
    <img src="{{ src }}" alt="{{ alt }}">
  </div>
</figure>
{% endmacro %}