formation/templates/formation/messages_list.jinja
{%- if field.errors -%}
<ul class="errorlist">
{%- for error in field.get_errors_list() -%}
<li class="error">
{{ error }}
</li>
{%- endfor -%}
</ul>
{%- endif -%}
{%- if field.warnings -%}
<ul class="warninglist">
{%- for warning in field.get_warnings_list() -%}
<li class="warning">
{{ warning }}
</li>
{%- endfor -%}
</ul>
{%- endif -%}