Ubuntu安装主题

安装Murrine主题引擎 (install the latest Murrine engine)

For Ubuntu Karmic and older, you must install the latest Murrine engine:

Karmic:

sudo add-apt-repository ppa:suraia/ppa

Then for any Ubuntu version, to upgrade to the latest Murrine engine:
sudo apt-get update && sudo apt-get upgrade

Or if you don't have the Murrine engine installed:
sudo apt-get update && sudo apt-get install gtk2-engines-murrine

原文：http://www.webupd8.org/2010/02/install-proposed-community-themes.html

安装Aurora主题引擎(install Aurora Gtk Engine)
下载http://www.gnome-look.org/content/show.php/Aurora+Gtk+Engine?content=56438
安装： "./configure --prefix=/usr -enable-animation" then "make" Then as a root user "sudo make install".

Then install the gtkrc theme by extracting to your ~/.themes directory or through the Appearance application.

To change your current theme to Aurora (under GNOME) open up the Appearance application (usually somewhere under System > Preferences) click the Customize button and under the controls tab select the theme you want.