![]() GNOME 42, Fedora, and Ubuntuįedora 36 and Ubuntu 22.04 are going to include GNOME 42. The tide’s turning, and if applications targeting the GNOME desktop want to stay current and relevant, they need to embrace libadwaita and GTK4. GTK3 applications will still run, but they won’t look as integrated and “native” as GTK4 applications.īottom line up front, although GNOME 42 might look like another round of small tweaks and polishes, there’s more moving beneath the surface than you’d first imagine. This work started in GNOME 41 and is continued in GNOME 42 with more applications embracing the brave new post-GNOME 40 world. To harness the power of libadwaita, applications need to be ported to GTK4. Well-behaved GTK applications that follow the GNOME human interface guidelines will reference libadwaita for stylesheets and other theme-centric information. At one time it was an initialism that stood for GIMP Tool Kit, but now the name is simply GTK. ![]() The toolkit used to develop the GNOME desktop and native GNOME programs is called GTK. It’s the software layer that gives GNOME the ability to use themes. This library provides the GNOME theming engine. GNOME 41 built upon this new foundation by introducing the libadwaita shared library. GNOME 40 brought a new workflow with horizontal theming and layouts. Fedora 36 and Ubuntu 22.04 will include this release of the popular Linux desktop environment.
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