/usr/lib/GNUstep/Frameworks/PreferencePanes.framework/Versions/1/libPreferencePanes.so.1 is in libpreferencepanes1 1.2.0-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/GNUstep/Frameworks/PreferencePanes.framework/Versions/1/libPreferencePanes.so.1.0.0