Gtk changing colors

[Ondra Pelech <ondra pelech gmail com>]

Hello,
I've installed Fedora 15 with new GNOME 3.
now I'm wondering how to tweak the colors.

Is there a way, like it was in GNOME 2 [0]?
This is how my ideal color tune looks [1].

This is __really__ crucial for me, so I'm not afraid to even dive into
code, if I have to. I just don't know where to cut.

Thank you very much for advice.

Ondra Pelech

[0]
http://blog.lxde.org/wp-content/uploads/2010/08/lxappearance-colors-480x392.png
[1] http://img101.imageshack.us/img101/7429/anjuta.png