/usr/lib/GNUstep/Applications/PikoPixel.app/Resources is in pikopixel.app 1.0-b9b-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/GNUstep/Applications/PikoPixel.app/../../../../share/GNUstep/PikoPixel.app