--- a/src/source/conf.py	Thu Apr 12 11:44:17 2018 +0200
+++ b/src/source/conf.py	Thu Apr 12 14:08:01 2018 +0200
@@ -235,3 +235,7 @@
         else:
             return super(self.__class__, self).__doc__
     FieldProperty.__doc__ = property(get_field_doc)
+
+
+def setup(app):
+    app.add_stylesheet('css/custom.css')