In this tutorial we will see how to install the GTK3 Elegant-Arch theme under Ubuntu 11.10 Oneiric Ocelot. The theme is compatible with Gnome Shell and Unity. A screenshot for this theme under Oneiric:
To beautify the Elegant-Arch theme more, you can install with it one of these icon themes listed here.
Via the terminal, run these commands:
wget -O elegant_arch_gtk3.zip http://goo.gl/eAQ7R
unzip elegant_arch_gtk3.zip -d ~/.themes
To enable this theme, use these commands:
gsettings set org.gnome.desktop.interface gtk-theme 'Elegant-Arch-gtk3'
gconftool-2 --set --type string /apps/metacity/general/theme 'Elegant-Arch-gtk3'