This theme has come through three generations and I have found the following history:

Originally posted by Alan Carlos at InsanelyMac Forum - April 01, 2009
http://www.insanelymac.com/forum/index.php?showtopic=159974&view=findpost&p=1121174

Tweaked by nebulOSX at InsanelyMac Forum - April 04, 2009
http://www.insanelymac.com/forum/index.php?showtopic=159974&view=findpost&p=1123924

Re-posted to voodooprojects forum by Nebkiwi (was this nebulOSX?) - April 09, 2009
http://forum.voodooprojects.org/index.php/topic,62.msg195.html#msg195

Modified by rocccky - September 13, 2009
http://forum.voodooprojects.org/index.php/topic,753.0.html

Updated by blackosx - March 21, 2012
Replaced the boot logo to a cleaner version.
Added Ext3 device icon posted by censor at rocccky's topic(link above).
Renamed and added some device icons to match latest Chameleon icons.
Made OS logos smaller to fit better inside the device selection.

Updated by blackosx - March 23, 2012
Replaced the original device_selection.png with the one posted by Esquilax from
http://forum.voodooprojects.org/index.php/topic,62.msg11397.html#msg11397
I've made the grey darker. Added it to the .PSD, keeping the original in there too.