authentik/passbook/core/templates/partials/messages.html

{% if messages %}
  {% for msg in messages %}
  <div class="alert alert-{{ msg.level_tag }}">
    <button type="button" class="close" data-dismiss="alert" aria-label="Close">
      <span class="pficon pficon-close"></span>
    </button>
    {% if msg.level_tag == 'danger' %}
      <span class="pficon pficon-error-circle-o"></span>
    {% elif msg.level_tag == 'warning' %}
      <span class="pficon pficon-warning-triangle-o"></span>
    {% elif msg.level_tag == 'success' %}
      <span class="pficon pficon-ok"></span>
    {% elif msg.level_tag == 'info' %}
      <span class="pficon pficon-info"></span>
    {% endif %}
    <strong>{{ msg.message|safe }}</strong>
  </div>
  {% endfor %}
{% endif %}