diff -r 9ad72cdbb4d1 -r dc05ad847d02 src/pyams_default_theme/interfaces/__init__.py
--- a/src/pyams_default_theme/interfaces/__init__.py	Mon Oct 08 15:04:08 2018 +0200
+++ b/src/pyams_default_theme/interfaces/__init__.py	Mon Oct 08 17:11:12 2018 +0200
@@ -27,6 +27,10 @@
     """Content date interface"""
 
 
+class IContentBannerIllustration(Interface):
+    """Content banner illustration adapter interface"""
+
+
 class IContentHeaderIllustration(Interface):
     """Content header illustration adapter interface"""