/usr/ is in libseed-gtk3-dev 3.8.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/seed-gtk3/
/usr/share/
/usr/share/doc/
/usr/share/doc/libseed-gtk3-dev/
/usr/share/doc/libseed-gtk3-dev/copyright
/usr/share/seed-gtk3/dbus2js.py
/usr/lib/
/usr/lib/libseed-gtk3.a
/usr/lib/pkgconfig/
/usr/lib/pkgconfig/seed.pc
/usr/include/
/usr/include/seed-gtk3/
/usr/include/seed-gtk3/seed-module.h
/usr/include/seed-gtk3/seed-debug.h
/usr/include/seed-gtk3/seed.h
/usr/share/doc/libseed-gtk3-dev/README
/usr/share/doc/libseed-gtk3-dev/NEWS.gz
/usr/share/doc/libseed-gtk3-dev/AUTHORS
/usr/share/doc/libseed-gtk3-dev/changelog.Debian.gz
/usr/lib/libseed-gtk3.so