diff --git a/agaric/templates/layout/node--full.html.twig b/agaric/templates/layout/node--full.html.twig
index 5312c39..c6a46a7 100644
--- a/agaric/templates/layout/node--full.html.twig
+++ b/agaric/templates/layout/node--full.html.twig
@@ -84,12 +84,14 @@
 {% endif %}
 
 {% if not has_title_paragraph %}
+  {% set headerbg = 'light' %}
   {% set classes = [ 'hero', 'hero-' ~ node.bundle|replace({"_": "-"}) ] %}
   {% if node.bundle != 'blog' %}
     {% set classes = classes|merge(['is-dark']) %}
+    {% set headerbg = 'dark' %}
   {% endif %}
   {# Header hero region #}
-  <section{{ attributes.addClass(classes) }} data-headerbg="transparent">
+  <section{{ attributes.addClass(classes) }} data-headerbg="{{ headerbg }}">
     <div class="hero-body">
       <div class="container">
         <h1 class="title is-2">{{ label }}</h1>