{% macro render_nav_item(endpoint, label, label_style="white", tag="", tag_style="blue") %}
  <li>
    <a class="text-{{ label_style }} {% if request.endpoint and request.endpoint == endpoint %}active{% endif %}"
      href="{{ url_for(endpoint, **kwargs) }}">
      {{ label }}
      {% if tag %}
        <span class="tag tag-{{ tag_style }}">{{ tag }}</span>
      {% endif %}
    </a>
  </li>
{% endmacro %}