These guidelines highlight the GNOME accessibility features and provide guidance for creating accessible Linux GNOME software. These topics are covered in detail with supporting rationale, citing specific GTK+ and ATK interfaces.
How to use the GTK+ and ATK libraries, GUI builder tools such as Glade, and accessibility tools and technologies such as Accerciser and Linux screen readers to enhance GTK+ widgets and to build accessibility into custom widgets. The GTK+ Toolkit is based on 4 libraries: the GLib core library, the GTK object library, Pango for layout and rendering, and the Accessibility Toolkit (ATK).