Install Cairo Dock 3.1 in Ubuntu 12.10/12.04/Mint

To Install Cairo Dock, execute the following commands in the Terminal:
(one line at a time, enter then after command complete execute the next command line)

$sudo add-apt-repository ppa:cairo-dock-team/ppa

$sudo apt-get update

$sudo apt-get install cairo-dock cairo-dock-plug-ins

From: Install Cairo Dock 3.1 in Ubuntu 12.10/12.04/Mint (New Release)
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Fixing Ubuntu theme Gnome Shell 3.6 metacity theme Bug (workaround)

Many thanx to reference source you made my day.

    I just realize that the metacity theme (window decorator) from Gnome Cupertino did not applied when I use it, even though the theme maker already include metacity theme in his release.
    This is because Gnome Shell 3.6 Bugs or they're changed without notice. The .themes folder that placed under user's home will not read by the system, so it will not change your window decorator theme.

   Solution 1: we need to move those package to the system wide's themes folder; /usr/share/themes/
 i.e.: /usr/share/themes/GnomeCupertino 

   Solution 2: make a themes folder under ~/.local/share/ then move that theme into this folder
i.e.: ~/.local/share/themes/GnomeCupertino 
Note: With this solution the themes in this folder will not appear in the Gnome tweak tools.

   Solution 3: make a symbolic link from ~/.themes to the ~/.local/share/
$ln -s ~/.themes ~/.local/share/themes

• Use the Gnome Tweak tools to select the theme you want 
• Alt+F2 put r then Enter to refresh the changed.

PS: Use Gnome Cupertino (gtk theme) with Zukitwo cupertino (gnome shell theme) is ROCK! ;)

Reference: http://www.fandigital.com/2012/10/use-custom-theme-in-gnome-shell-36.html