content-kanban.html.twig in Content Planner 8

<div class="content-kanban">

  <h2 id="{{ kanban_id }}">{{ kanban_label }}</h2>

  {{ filter_form }}

  <table class="kanban-columns kanban-{{ columns|length }}-columns">
    <thead>
      <tr>
        {% for header in headers %}
          <th>{{ header }}</th>
        {% endfor %}
      </tr>
    </thead>
    <tbody>
      <tr>
        {% for column in columns %}
          {{ column }}
        {% endfor %}
      </tr>
    </tbody>
  </table>
</div>