{% load i18n %}
{% comment %}
Data structure that can be used to build the UI (only use it if it is helpful. Might be easier to just hardcode all in the template). Make sure to prefix the name of any input created here, so the names don't clash with real fields in the form.
Save the resulting selection as a class name into the textarea with name={{ name }}. It expects something like:
visible-print-block
{{ widget_html }}
Other Template variables:
    id: {{ id }} (css id of the textarea)
    name: {{ name }}
    value: {{ value }}
{% endcomment %}