gnu-social/plugins/ImageEncoder/templates/imageEncoder/imageEncoderView.html.twig

<div>
    <figure>
        <img class="u-photo" src="{{ path('attachment_thumbnail', thumbnail_parameters) }}" alt="{{ attachment.getTitle() }}">
        <figcaption><a
                href="{{ path('attachment_show', {'id': attachment.getId()}) }}">{{ attachment.getTitle() }}</a>
        </figcaption>
    </figure>
</div>