Update view paragraph template to add section wrapper

if it's busted out of the content flow, anyhow.

agaric/templates/paragraph/paragraph--view.html.twig

@@ -1,11 +1,16 @@
-{# extends 'paragraph.html.twig' #}
+{# For available variables see paragraph.html.twig #}
 
 {%
-  set classes = [
+  set section_classes = [
     'section',
     not paragraph.isPublished() ? 'paragraph--unpublished'
   ]
 %}
+{% if paragraph.field_style_escape_flow == true %}
+  {% set section_attributes = create_attribute().addClass(section_classes).setAttribute('data-headerbg', 'light') %}
+  <section {{ section_attributes }}>
+{% endif %}
+
 {% block paragraph %}
   <div{{ attributes.addClass(classes) }}>
     {% block content %}
@@ -13,3 +18,7 @@
     {% endblock %}
   </div>
 {% endblock paragraph %}
+
+{% if paragraph.field_style_escape_flow.value == true %}
+  </section>
+{% endif %}