diff --git a/agaric/templates/layout/page.html.twig b/agaric/templates/layout/page.html.twig
index 6413531..5b12d55 100644
--- a/agaric/templates/layout/page.html.twig
+++ b/agaric/templates/layout/page.html.twig
@@ -37,7 +37,7 @@
 
 {% set header_section_attributes = create_attribute() %}
 {% if not node %}
-  {% set header_section_attributes = header_section_attributes.addClass(['hero']).setAttribute('data-headerbg', 'light') %}
+  {% set header_section_attributes = header_section_attributes.addClass(['hero']).setAttribute('data-headerbg', 'dark') %}
 {% endif %}
 
 {# We do not want the secondary menu printed where Bulma's page.html.twig prints