rpi_video_looper/Adafruit_Video_Looper/templates/security/_messages.html

{%- with messages = get_flashed_messages(with_categories=true) -%}
{% if messages %}
<ul class="flashes">
  {% for category, message in messages %}
  <li class="{{ category }}">{{ message }}</li>
  {% endfor %}
</ul>
{% endif %}
{%- endwith %}