diff -r df1db657bbb4 -r 48b23e6f26d9 share/hedgewars/Data/Themes/Deepspace/theme.cfg
--- a/share/hedgewars/Data/Themes/Deepspace/theme.cfg	Thu Mar 22 16:08:33 2018 +0100
+++ b/share/hedgewars/Data/Themes/Deepspace/theme.cfg	Thu Mar 22 16:52:04 2018 +0100
@@ -1,3 +1,4 @@
+hidden = true
 sky = 0, 0, 0
 border = 175, 177, 75
 water-top = $2B, $2B, $2B