You can use preference tools to configure almost every feature of the GNOME Desktop. Each tool controls a particular part of the behavior of the GNOME Desktop. For example, you can use a preference tool to select a theme for the GNOME Desktop. A theme is a group of coordinated settings that specify the visual appearance of a part of your interface.
You can start your preference tools in either of the following ways:
Choose Preferences from the Main Menu, then choose the item that you require.
Double-click on the This Computer object
on the desktop. A Nautilus
window opens at the This Computer location. Double-click on the Preferences object to display the preference tools. Double-click on the item
that you require.