Misago/misago/templates/_misago/privatethreads/participants.html

{% load i18n misago_avatars %}
<ul class="list-unstyled participants-popover">
  {% for participant in participants %}
  <li>
    <a href="{{ participant.user.get_absolute_url }}" ><img src="{{ participant.user|avatar:20 }}" alt="{% trans "Avatar" %}"></a>
    <a href="{{ participant.user.get_absolute_url }}" class="item-title">{{ participant.user }}</a>
  </li>
  {% endfor %}
</ul>