Similar to PHIGS
AIGLX
AIGLX
Avahi
Avahi (software)Awesome
Awesome (window manager)
Budgie
Budgie (desktop environment)
Cinnamon
Cinnamon (desktop environment)
Cygwin/X
Cygwin/XDirect Save Protocol
Direct Save Protocol
Extended Window Manager Hints
Extended Window Manager Hints
Freedesktop.org
Freedesktop.org
GLX
GLX
GNOME
GNOME
GNUstep
GNUstepGPE Palmtop Environment
GPE Palmtop Environment
Gtkmm
Gtkmm
Inter-Client Communication Conventions Manual
Inter-Client Communication Conventions Manual
KDE Plasma 5
KDE Plasma 5Kterm
LessTif
LessTif
LXDE
LXDE
MATE (デスクトップ環境)
MATE (desktop environment)Metisse
Metisse
MIT License
MIT License
Motif (GUI)
Motif (software)
OPEN LOOK
OPEN LOOKPortland Project
Portland Project
Project Athena
Project Athena
Qt
Qt (software)Rxvt
Rxvt