Using Themes to Customize the Desktop

This section describes how to use themes to customize the appearance of the GNOME Desktop.

4.2.1. Introduction to Themes

You can use themes to modify and control the appearance of the desktop in a consistent manner. A theme is a group of coordinated settings that specifies how a desktop component or a group of desktop components appears. When you apply a theme, the system modifies many desktop components simultaneously to achieve the desired effect. For example, if you apply a theme that increases the font size across the desktop, the theme also modifies the size of panels and icons on the desktop for optimum compatibility with the font size.

The following types of themes affect different parts of the desktop:

Desktop themes

Desktop themes determine the visual appearance of all windows, applications, dialogs, panels, and applets. Desktop themes also determine the visual appearance of the GNOME-compliant interface items that appear on windows, panels, and applets, such as menus, icons, and buttons. Some of the desktop themes that are available in the Desktop are designed for special accessibility needs.

Window frame themes

Window frame themes determine the appearance of the frames around windows only.

4.2.2. To Choose a Desktop Theme

To open the Theme preference tool and view the desktop themes that are available, choose Applications ▸ Desktop Preferences ▸ Theme. The Theme Preferences dialog is displayed.

The most popular desktop themes are listed on the left side of the Theme Preferencesdialog. To choose a new theme for the desktop, click on a theme in the list box. The system automatically applies the theme to the desktop. The view a longer list of desktop themes, click on the Theme Details button. The desktop themes are displayed in the Controls tabbed section of the Theme Details dialog. There are several desktop themes available that suit different accessibility needs. These themes are described in the following table:

Table 4-2Desktop Themes Designed for Accessibility Requirements
Theme Name Description
HighContrast Provides dark text on a light background using high contrast colors.
HighContrastInverse Provides light text on a dark background using high contrast colors.
LowContrast Uses low contrast colors for the background and foreground text.
LargePrint Increases the font size to 18pt. The background and foreground colors are the same as those specified by the Default desktop theme.
HighContrastLargePrint Provides dark text on a light background using high contrast colors and increases the font size to 18pt.
HighContrastLargePrintInverse Provides light text on a dark background using high contrast colors and increases the font size to 18pt.
LowContrastLargePrint Uses low contrast colors for the background and foreground text and increases the font size to 18pt.

4.2.3. To Choose a Window Frame Theme

To open the Theme preference tool and view the window frame themes that are available, perform the following steps:

  1. Choose Applications ▸ Desktop Preferences ▸ Theme. The Theme Preferences dialog is displayed.
  2. Click on the Theme Details button. The Theme Details dialog is displayed.
  3. Click on the Window Border tab to display the window frame themes that are available. The Atlanta theme is an accessible theme.
  4. To choose a window frame theme, select a theme from the list box, then click Close.

4.2.4. To Choose an Icon Theme

To open the Theme preference tool and view the icon themes that are available, perform the following steps:

  1. Choose Applications ▸ Desktop Preferences ▸ Theme. The Theme Preferences dialog is displayed.
  2. Click on the Theme Details button. The Theme Details dialog is displayed.
  3. Click on the Icons tab to display the icon themes that are available.
  4. To choose an icon theme, select a theme from the list box, then click Close.

4.2.5. To Create Your Own Themes

For information about how to create your own desktop themes and window frame themes, see the GNOME 2.8 Desktop System Administration Guide.