Nodoka is the new Fedora default theme for Gnome. It currently contains gtk engine, gtk theme, metacity theme and gnome meta theme .If you want to install nodoka theme in Ubuntu follow this procedure.
Preparing your System
1. Install build-essential and libgtk2.0-dev packages:
sudo apt-get install build-essential libgtk2.0-dev
2. Download Nodoka GTK+ engine 0.6 from here.
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http://www.ubuntugeek.com/install-nodoka-fedora-theme-on-ubuntu.html