Ubuntu!

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.

3. Extract tarball package:

tar zxvf gtk-nodoka-engine-0.6.90.2.tar.gz

4. Now go to gtk-nodoka-engine-0.6 directory:

cd gtk-nodoka-engine-0.6.90.2

5. Configure:

./configure --prefix=/usr --enable-animation

6. Make:

make

7. Install:

sudo make install

Install theme

1. Get Nodoka theme 0.3.2 from here.
Then execute command in terminal:

tar zxvf nodoka-theme-gnome-0.3.90.tar.gz

2. Copy the Nodoka folder to themes folder:

cd nodoka-theme-gnome-0.3.90

sudo cp -r Nodoka/ /usr/share/themes/

Use theme
Click System -> Preferences -> Theme menu command. In Theme Preferences dialog, choose Nodoka item.

Screenshot: