Linux is a kernel—like NT or Darwin. Better comparison is with KDE and GNOME and they both have native UI toolkits as well as look&feel and design guidelines. O

Linux is a kernel—like NT or Darwin. Better comparison is with KDE and GNOME and they both have native UI toolkits as well as look&feel and design guidelines. Only major Linux-based system without native UI is Chrome OS, but that’s rather intentional.