Gnome Tweak Tool is a handy application, which enables tweaking Gnome 3 settings. Gnome Tweak Tool provides options to switch and install the gnome-shell, GTK, window, icon/cursor themes and to change the title bar fonts and icons within menu buttons. Furthermore, you can change the default font size of the Gnome shell, file manager’s desktop icons, title bar click action, shell clock settings and antialiasing.
It is quite obvious that before you can use this tool, Gnome 3 will have to be installed on your Ubuntu 11.10 operating system. You can find Gnome3 installation instructions from my post: How To Install Gnome 3 And Classic Gnome Session In Ubuntu 11.10 Oneiric Ocelot.
To install Gnome Tweak Tool, enter the following command in a Terminal window:
sudo apt-get install gnome-tweak-tool
After installation, launch Gnome Tweak Tool from Applications –> Other–> Advanced Settings. The Desktop tab allows you to display shortcuts for computer, home, network server, trash and mounted volumes (on the desktop). Moreover, you can enable/disable handling of desktop by the file manager, text scaling, moonscape font, document font, tweak default font, hinting and antialiasing.
You can tweak shell settings, by going to the Shell tab. From here, you can turn on / off the clock display, calendar and date, as well as manage title bar and laptop battery settings. Installed shell extensions can be managed from Shell Extension section.
Other Gnome Tweak Tool options include enabling/disabling menu and button icons, changing the key binding, icon and GTK themes, title bar and window focus tweaking.
Other than using the above mentioned command, you can also download Gnome Tweak tool source package from Launchpad.