--- a/src/hdalab/settings.py	Fri Mar 06 18:12:15 2015 +0100
+++ b/src/hdalab/settings.py	Sun Mar 08 14:53:52 2015 +0100
@@ -177,6 +177,11 @@
 
 LOCALE_PATHS = ()
 
+RENKAN_PREVIEW_DIM = (500,500)
+RENKAN_PREVIEW_WAIT = 5000
+
+CELERY_TASK_SERIALIZER = 'json'
+CELERY_ACCEPT_CONTENT = ['json', 'msgpack', 'yaml']
 
 from hdalab.config import * #@UnusedWildImport