/usr/lib/GNUstep/Frameworks/ is in projectcenter.app 0.6.0-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Headers
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/ProjectCenter
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Resources
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/0.6.0/
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/0.6.0/Headers
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/0.6.0/ProjectCenter
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/0.6.0/Resources
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/0.6.0/libProjectCenter.so
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/0.6.0/libProjectCenter.so.0
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/0.6.0/libProjectCenter.so.0.6.0
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/Versions/Current
/usr/lib/GNUstep/Frameworks/ProjectCenter.framework/libProjectCenter.so