Misago/templates/admin/message/security/signed_in.html

{% extends "admin/message/base.html" %}
{% load i18n %}

{% block content %}
  <div class="alert-icon"><span><i class="icon-ok icon-white"></i></span></div>
  <p><strong>{% trans username=message.user.username %}Welcome back, {{ username }}!{% endtrans %}</strong> {% trans %}You have signed in successfully.{% endtrans %}</p>
{% endblock %}