GTK+ is a multi-platform toolkit for creating graphical user
interfaces suitable for projects ranging from small one-off tools to
complete application suites.
GTK+ 3.2.0 stable has been released just now and, along with GNOME 3.2, has started to land in Ubuntu 11.10.
What is new in GTK+ 3.2.0?
- numerous improvements in the CSS theming support
- new experimental Wayland and HTML5 backends (the next UDS should bring more "light" in the Wayland approach)
- new widgets (GtkLockButton and GtkOVerlay)
- and more