diff -r 852aa448da04 -r 5417a16e6ce6 src/pyams_content/component/theme/__init__.py
--- a/src/pyams_content/component/theme/__init__.py	Tue Nov 27 08:50:02 2018 +0100
+++ b/src/pyams_content/component/theme/__init__.py	Tue Nov 27 08:50:37 2018 +0100
@@ -12,23 +12,18 @@
 
 __docformat__ = 'restructuredtext'
 
+from persistent import Persistent
+from zope.container.contained import Contained
+from zope.interface import implementer
+from zope.schema.fieldproperty import FieldProperty
 
-# import standard library
-
-# import interfaces
 from pyams_content.component.theme.interfaces import IThemesManagerTarget, IThemesManager, THEMES_MANAGER_KEY, \
     IThemesTarget, IThemesInfo, THEMES_INFO_KEY, ITagsManager, ITagsManagerTarget, TAGS_MANAGER_KEY, ITagsInfo, \
     ITagsTarget, TAGS_INFO_KEY, ICollectionsManager, ICollectionsManagerTarget, COLLECTIONS_MANAGER_KEY, \
     ICollectionsInfo, ICollectionsTarget, COLLECTIONS_INFO_KEY
+from pyams_content.features.checker import BaseContentChecker
 from pyams_content.features.checker.interfaces import IContentChecker, ERROR_VALUE
-
-# import packages
-from persistent import Persistent
-from pyams_content.features.checker import BaseContentChecker
 from pyams_utils.adapter import adapter_config, get_annotation_adapter
-from zope.container.contained import Contained
-from zope.interface import implementer
-from zope.schema.fieldproperty import FieldProperty
 
 from pyams_content import _