/usr/ is in caribou 0.4.21-5.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/
/usr/bin/caribou-preferences
/usr/lib/
/usr/lib/caribou/
/usr/lib/caribou/caribou
/usr/lib/python3/
/usr/lib/python3/dist-packages/
/usr/lib/python3/dist-packages/caribou/
/usr/lib/python3/dist-packages/caribou/__init__.py
/usr/lib/python3/dist-packages/caribou/i18n.py
/usr/lib/python3/dist-packages/caribou/settings/
/usr/lib/python3/dist-packages/caribou/settings/__init__.py
/usr/lib/python3/dist-packages/caribou/settings/caribou_settings.py
/usr/lib/python3/dist-packages/caribou/settings/preferences_window.py
/usr/lib/python3/dist-packages/caribou/settings/setting_types.py
/usr/lib/python3/dist-packages/caribou/settings/settings_manager.py
/usr/share/
/usr/share/dbus-1/
/usr/share/dbus-1/services/
/usr/share/dbus-1/services/org.gnome.Caribou.Daemon.service
/usr/share/doc/
/usr/share/doc/caribou/
/usr/share/doc/caribou/copyright
/usr/share/glib-2.0/
/usr/share/glib-2.0/schemas/
/usr/share/glib-2.0/schemas/org.gnome.caribou.gschema.xml
/usr/share/doc/caribou/changelog.Debian.gz