I installed the Equinox theme from the ppa:
sudo add-apt-repository ppa:tiheum/equinox sudo apt-get update && sudo apt-get install gtk2-engines-equinox
I have used gnome-tweak-tool to change the window borders to Equinox Evolution Squared but the Equinox theme doesn't appear in the 'GTK+ theme' drop-down option list.
My question is how can I enable the Equinox widgets?
I'm on Ubuntu 11.10 and using Unity.