GTK, which stands for the Gimp ToolKit, is a library for creating graphical user interfaces. It is designed to be small and efficient, but still flexible enough to allow the programmer freedom in the interfaces created. GTK provides some unique features over standard widget libraries. License: GNU Lesser General Public License (LGPL) Changes:
Several new widgets, objects, and APIs have been introduced (GdkAppLaunchContext, GtkMountOperation, GtkToolShell, gtk_show_uri(), gtk_widget_get_snapshot()). The file chooser now uses GIO directly, and loadable backends are no longer supported. Autocompletion in the file chooser entry has been improved. Print support has been improved. Translations are no longer used when an application is not translated to the current locale. gdk-pixbuf now supports more image types and makes more use of GIO. GDK uses Xrandr instead of Xinerama to provide better monitor information.