/usr/ is in budgie-core-dev 10.4+git20171031.10.g9f71bb8-1.2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/budgie-desktop/
/usr/include/budgie-desktop/applet-info.h
/usr/include/budgie-desktop/applet.h
/usr/include/budgie-desktop/budgie-enums.h
/usr/include/budgie-desktop/plugin.h
/usr/include/budgie-desktop/popover-manager.h
/usr/include/budgie-desktop/popover.h
/usr/include/budgie-desktop/theme.h
/usr/lib/
/usr/lib/pkgconfig/
/usr/lib/pkgconfig/budgie-1.0.pc
/usr/lib/pkgconfig/budgie-theme-1.0.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/budgie-core-dev/
/usr/share/doc/budgie-core-dev/copyright
/usr/share/gir-1.0/
/usr/share/gir-1.0/Budgie-1.0.gir
/usr/share/vala/
/usr/share/vala/vapi/
/usr/share/vala/vapi/budgie-1.0.deps
/usr/share/vala/vapi/budgie-1.0.vapi
/usr/lib/libbudgie-plugin.so
/usr/lib/libbudgietheme.so
/usr/lib/libraven.so
/usr/share/doc/budgie-core-dev/changelog.Debian.gz