/usr/ is in libubuntutoolkit5-gles-dev 1.3.1918+16.04.20160404-0ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/UbuntuToolkit.pc
/usr/lib/x86_64-linux-gnu/libUbuntuToolkit.prl
/usr/lib/x86_64-linux-gnu/libUbuntuToolkit.la
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_lib_UbuntuToolkit.pri
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_lib_UbuntuToolkit_private.pri
/usr/include/
/usr/include/x86_64-linux-gnu/
/usr/include/x86_64-linux-gnu/qt5/
/usr/include/x86_64-linux-gnu/qt5/UbuntuToolkit/
/usr/include/x86_64-linux-gnu/qt5/UbuntuToolkit/UbuntuToolkit
/usr/include/x86_64-linux-gnu/qt5/UbuntuToolkit/colorutils.h
/usr/include/x86_64-linux-gnu/qt5/UbuntuToolkit/UbuntuToolkitDepends
/usr/include/x86_64-linux-gnu/qt5/UbuntuToolkit/ColorUtils
/usr/include/x86_64-linux-gnu/qt5/UbuntuToolkit/ubuntutoolkitglobal.h
/usr/include/x86_64-linux-gnu/qt5/UbuntuToolkit/ubuntutoolkitversion.h
/usr/include/x86_64-linux-gnu/qt5/UbuntuToolkit/UbuntuToolkitVersion
/usr/share/
/usr/share/doc/
/usr/share/doc/libubuntutoolkit5-gles-dev/
/usr/share/doc/libubuntutoolkit5-gles-dev/copyright
/usr/share/doc/libubuntutoolkit5-gles-dev/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libUbuntuToolkit.so