diff -r df1db657bbb4 -r 48b23e6f26d9 share/hedgewars/Data/Themes/CrazyMission/theme.cfg
--- a/share/hedgewars/Data/Themes/CrazyMission/theme.cfg	Thu Mar 22 16:08:33 2018 +0100
+++ b/share/hedgewars/Data/Themes/CrazyMission/theme.cfg	Thu Mar 22 16:52:04 2018 +0100
@@ -1,3 +1,4 @@
+hidden = true
 sky = 20, 23, 24
 border = 20, 23, 24
 water-top = 21, 57, 76