dsfr4drupal-1.x-dev/components/display-footer/display-footer.twig

{# Button to be inserted in the bottom list block of the footer. #}
{% set attributes = attributes|default(create_attribute()) %}
{% set label = label|default('Display settings'|t) %}
<li{{ attributes.addClass('fr-footer__bottom-item') }}>
  <button type="button" class="fr-footer__bottom-link fr-icon-theme-fill fr-btn--icon-left" aria-controls="modal-display-settings" data-fr-opened="false">
    {{ label }}
  </button>
</li>