I'm using GIMP every day (on 11.10). Because of this, I need the Single-Window mode feature.

So, I've added the matthaeus123/mrw-gimp-svn PPA, but as you see the description:

GIMP 2.7.5 Will not work with the current glib and gtk in Oneiric. To
fix the problem install these repos

deb http://ppa.launchpad.net/gnome3-team/gnome3/ubuntu oneiric main



deb http://ppa.launchpad.net/ricotz/testing/ubuntu oneiric main

I had to install them. The Gnome3 repo is quite OK, but the Ricotz Testing is full of new unity and other not needed update.

As the result of the previous, I'm experiencing some UI inconveniences. (Eg. the backgrounds and the text colors of the indicators' menus are nearly the same - so hard to read them.)
(As it is shown there:)

You are getting bleeding edge snapshots! You should have a stable
experience most of the time, but there will be problems!

I've googled around about repo prioritizing, and I've found the repo host pin option:

 Package: *

 Pin: origin "ftp.debian.org"

 Pin-Priority: 400

It is too much! I've other PPAs, whose are OK. I wanna just the bad one: ricotz/testing.

I've heard about PPA-Purge. So the downgrade won't be a problem. I just wonder the prioritizing of the repos, OR other sources of GIMP Single-Window mode+Gnome Shell(3).

Please help me! Thank you!