Last week, we told you that GTK+ 3.22.3 stable release landed on the official channels and it’s ready for integration in various GNU/Linux distributions that are already shipping with the newest GNOME 3.22 packages. Out report stated that GTK+ 3.22.3 brought many GL improvements and HiDPI support for the Windows platform. But it looks like there’s a lot going on on the master branch, where the magic happens. According to Emmanuele Bassi’s latest report, Adwaita, the default GNOME theme, and other GTK+ themes, were ported to use the standard CSS gradient definitions, and it looks like the custom “-gtk-gradient” CSS function has been removed.