--- a/src/pyams_default_theme/interfaces/__init__.py	Thu Sep 27 15:51:18 2018 +0200
+++ b/src/pyams_default_theme/interfaces/__init__.py	Thu Sep 27 15:52:20 2018 +0200
@@ -12,12 +12,6 @@
 
 __docformat__ = 'restructuredtext'
 
-
-# import standard library
-
-# import interfaces
-
-# import packages
 from zope.interface import Interface
 
 
@@ -33,5 +27,9 @@
     """Content date interface"""
 
 
+class IContentHeaderIllustration(Interface):
+    """Content header illustration adapter interface"""
+
+
 class IContentNavigationIllustration(Interface):
-    """Content navigation illustration"""
+    """Content navigation illustration adapter interface"""