I have tried getting icons in Ubuntu 12.04 2d, by putting them in the /.icons folder and using "Ubuntu Tweak Tool".
It doesn't work (This didn't work in 11.10 either so I think it isn't a bug).
They don't show up in the icons drop down menu. I was wondering if there was any other way to activate an icon theme. If it uses terminal could you tell me instructions using the "faenza theme".
Also the same problem happened trying to install a theme but I am very happy with 12.04's Ambiance.
Sure, it's called MyUnity. It's a great application, with support for both Unity 3D and 2D, with a wide variety of configuration options.
MyUnity is available both on Ubuntu 11.10 and 12.04, and is available through the Ubuntu Software Center. Hope this helps!
Linked Question:
Actually it does work in 11.10!!
If it still works in 12.04 2d is a different question, but a recent comment on the following link indicates so! tiheum "Faenza Icon" theme also comes with an installer script to make things easier!
Use the link above and follow his description (you can also find more relevant information there and ask him directly), or follow the copy/paste description below!
Installation:
It seems, that your path is wrong and therefore it didn't work and it would be nice, if you report back, to let us know if it worked for you!