{% load thumbnail xprez %}
{% xprez_thumbnail_format "responsive_image" as thumbnail_format %}
{% xprez_thumbnail_quality "responsive_image" as thumbnail_quality %}
srcset="{% for geom in geometries %}{% thumbnail image geom crop=crop|default:"" format=thumbnail_format quality=thumbnail_quality filename_stem=filename_stem|default:"" as t %}{{ t.url|build_absolute_uri }} {{ t.width }}w{% if not forloop.last %}, {% endif %}{% endthumbnail %}{% endfor %}"
sizes="{{ sizes }}"
{% thumbnail image geometries.0 crop=crop|default:"" format=thumbnail_format quality=thumbnail_quality filename_stem=filename_stem|default:"" as t_src %}
    width="{{ t_src.width }}"
    height="{{ t_src.height }}"
{% endthumbnail %}