11 Best Free and Open Source GTK File Managers
In the field of desktop environments, there are two desktops that dominate the open source landscape: KDE and GNOME. They are smart, stable, and generally stay out of the way.
While KDE is more customizable than GNOME, both offer a lot of flexibility. For example, the best GNOME extensions and KDE widgets improve the desktop experience. At the basis of the main KDE technologies is Qt, a free and open source widget toolkit. And at the heart of GNOME is the free and open source GTK toolkit.
GTK is a very popular toolkit. Offering a complete set of widgets, GTK is suitable for projects ranging from small tools to comprehensive application suites. GTK is mainly developed by The GNOME Project, which also develops the GNOME Development Platform and the GNOME Desktop Environment.