gtk client doesn't use theme colors

[stray]

now registering works so here the bug again from:  http://forum.deluge-torrent.org/viewtopic.php?f=7&t=29685&start=0

program: deluge-gtk version: 1.2.1 last not affected version: 1.1.9

The "State" and "Tracker" menu entries on the left seem to have a fixed background and text color regardless of the theme used.

The expected result would be that the theme colors are used.

[Cas]

For dev reference: see line 250 filtertreeview.py

[Cas]

I had a look into this and the only way I can see of making it look nicer across themes is to rework the sidebar.

As you can see from the attached screenshots, testing out a simple change that allows it to follow theme, makes it harder to distinguish between the sections of State, Trackers and Labels.