/usr/lib/GNUstep/Applications/Zipper.app/Resources is in zipper.app 1.5-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/GNUstep/Applications/Zipper.app/../../../../share/GNUstep/Zipper.app
/usr/lib/GNUstep/Applications/Zipper.app/../../../../share/GNUstep/Zipper.app