--- a/CREDITS	Sat Aug 15 16:23:00 2015 +0300
+++ b/CREDITS	Thu Sep 03 20:59:48 2015 +0300
@@ -46,6 +46,8 @@
 ==========
 - John Dum <fizzy@gmail.com> -> Nature theme
 - Jonatan Nilsson <jonatanfan@gmail.com> -> Pirate theme, City theme, Oriental theme, Snow theme
+- yd - http://opengameart.org/users/yd -> "oriented", used as Olympics SD theme
+- Kevin MacLeod - http://incompetech.com/ -> "hitman", used as basis for preliminary default SD theme
 
 ==========
 = THEMES