Fully working GTK3(+GTK2) theme for Gnome 3.8?

[Magnus Therning <magnus therning org>]

It seems it's a rather common problem that GTK3 themes partly break
Gnome3.8 by preventing having a nice desktop background while letting
the file manager draw the background:

https://bbs.archlinux.org/viewtopic.php?id=162204
https://bbs.archlinux.org/viewtopic.php?id=161918

I've so far found only two GTK3 themes that work in this respect,
the default theme Adwaita that ships with Gnome3.8 and Nokto3.8
(http://gnome-look.org/content/show.php?content=158033).  I'm not
particularly pleased with the aesthetics of either of them though.

What's causing this behaviour in themes?  (Hopefully it's easy to fix
the broken themes I come across.)
What other themes have you found that work properly?

/M

--
Magnus Therning                      OpenPGP: 0xAB4DFBA4
email: magnus therning org   jabber: magnus therning org
twitter: magthe               http://therning.org/magnus