con('heart', '25px', 'primary', font=True) }}

<h2>Font icon with custom size and custom color</h2>
<pre>{% raw %}{{ render_icon('heart', '2em', 'red', font=True) }}{% endraw %}</pre>
Output: {{ render_icon('heart', '2em', 'red', font=True) }}

<h2>Buttons with font icon</h2>
<a class="btn btn-primary text-white">Download {{ render_icon('arrow-down-circle', font=True) }}</a>
<a class="btn btn-success text-white">Bookmark {{ render_icon('bookmark-star', font=True) }}</a>
{% endblock %}