I have been using the default Ubuntu 11.10 with Unity for some time now and decided to start customizing it.
I have already been able to make some changes with the gnome-tweak-tool. However, there are many themes that I get from gnome-look.org that don't appear in the gnome-tweak-tool even after putting them in the /usr/share/themes folder.
Any idea why this is happening? Thanks.


