Not sure where i should post this, but its just a simple theme i have been playing with for a few hours. it is by no means complete.
PSD files are included with layers set up in a way that you can figure out what goes where in case you want a template to start making your own backgrounds with.
to remove transparency just open the chrome.psd file, disable the pink layer, and save as chrome.png in the same folder.
if you wish to get rid of the error when opening the options dialog, just copy background.png, open chrome.psd, put the background.png at the very bottom layer, and save as chrome.png.
Built it in the DefaultDark folder.
Built on 12.0.b2 but in theory should work on 11.2 stable as well.
Screenshots are kinda blurred.
https://scontent-b-iad.xx.fbcdn.net/hphotos-ash3/1526840_101519692604026...
https://scontent-b-iad.xx.fbcdn.net/hphotos-frc3/1533863_101519692554226...
DOWNLOAD
http://www2.zshares.net/xfgbftejfk7s
MIRROR
http://www.bloodskin.com/src/downloads/BloodSkinGrungePortableAppsTheme.zip
feel free to edit how you like.