The GNOME desktop environment and its underlying Gtk+ widget toolkit—which provide a user interface and a standard set of applications for Linux—have an elaborate theme system that enables users to customize the appearance of their desktop.
GNOME has attracted a vibrant community of open source artists who are collaborating to produce aesthetically sophisticated visual styles for the desktop environment. Many custom GNOME themes are published in online galleries so that they can be downloaded and installed by regular end users. The most popular of these repositories is the GNOME-Look.org Web site, which has become the de facto standard home of downloadable GNOME theming content.
