YGGtracker/templates/default/activity/event/user/add.html.twig

<a href="{{ path('user_info', { userId : user.id }) }}">
    <img class="border-radius-50 border-color-default vertical-align-middle" src="{{ user.identicon }}" alt="{{ 'identicon' | trans }}" />
</a>
<span class="margin-x-4-px">
    {{ 'joined' | trans }} {{ name }}
</span>
<div class="float-right">
    {{ added | format_ago }}
</div>