Elegant Cold Blue is a mod of Elegant Brit by fmrbpensador (AKA What is in a name? on ubuntuforums.org) who I thank a lot for all his awesome work.
This mod had a bit darker background color and all orange turned to a cold blue. It is also macmenu (and globalmenu) ready.
I also made an emerald theme (window decorations) that complete the theme.
Install by extracting to your ~/.themes directory or drag and drop the tarball to the theme manager.
Note : you may want to set Panel/menubar-black.png as panel background using panel properties dialog.