hehe.org/user/themes/hehe/templates/partials/navigation.html.twig

{% macro nav_loop(page) %}
    {% for p in page.children.visible %}
        {% set active_page = (p.active or p.activeChild) ? 'active' : '' %}
        {% if p.children.visible.count > 0 %}
            <li>
              <a href="{{ p.url }}" class="{{ active_page }}">
                  {{ p.menu }}
              </a>

              <div class="cat">
                <img src="/user/themes/hehe/images/fleche2.svg" alt="">
              </div>

            </li>
        {% else %}
            <li>
              <a href="{{ p.url }}" class="{{ active_page }}">
                  {{ p.menu }}
              </a>
            </li>
        {% endif %}
    {% endfor %}

{% endmacro %}

<ul {{ tree ? 'class="tree"' : '' }}>
    {{ _self.nav_loop(pages) }}
</ul>