/usr/ is in libpreferencepanes1 1.2.0-2+b2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/GNUstep/
/usr/lib/GNUstep/Frameworks/
/usr/lib/GNUstep/Frameworks/PreferencePanes.framework/
/usr/lib/GNUstep/Frameworks/PreferencePanes.framework/Versions/
/usr/lib/GNUstep/Frameworks/PreferencePanes.framework/Versions/1/
/usr/lib/GNUstep/Frameworks/PreferencePanes.framework/Versions/1/libPreferencePanes.so.1.0.0
/usr/share/
/usr/share/GNUstep/
/usr/share/GNUstep/Frameworks/
/usr/share/GNUstep/Frameworks/PreferencePanes.framework/
/usr/share/GNUstep/Frameworks/PreferencePanes.framework/Versions/
/usr/share/GNUstep/Frameworks/PreferencePanes.framework/Versions/1/
/usr/share/GNUstep/Frameworks/PreferencePanes.framework/Versions/1/Info-gnustep.plist
/usr/share/doc/
/usr/share/doc/libpreferencepanes1/
/usr/share/doc/libpreferencepanes1/changelog.Debian.amd64.gz
/usr/share/doc/libpreferencepanes1/changelog.Debian.gz
/usr/share/doc/libpreferencepanes1/changelog.gz
/usr/share/doc/libpreferencepanes1/copyright
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/libpreferencepanes1
/usr/lib/GNUstep/Frameworks/PreferencePanes.framework/Versions/1/Resources
/usr/lib/GNUstep/Frameworks/PreferencePanes.framework/Versions/1/libPreferencePanes.so.1
/usr/lib/libPreferencePanes.so.1
/usr/lib/libPreferencePanes.so.1.0.0