/usr/ is in libkf5gravatar-dev 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/KF5/
/usr/include/KF5/Gravatar/
/usr/include/KF5/Gravatar/GravatarCache
/usr/include/KF5/Gravatar/GravatarConfigWidget
/usr/include/KF5/Gravatar/GravatarConfigureSettingsDialog
/usr/include/KF5/Gravatar/GravatarDownloadPixmapWidget
/usr/include/KF5/Gravatar/GravatarResolvUrlJob
/usr/include/KF5/gravatar/
/usr/include/KF5/gravatar/gravatar_export.h
/usr/include/KF5/gravatar/gravatarcache.h
/usr/include/KF5/gravatar/gravatarconfiguresettingsdialog.h
/usr/include/KF5/gravatar/gravatarconfigwidget.h
/usr/include/KF5/gravatar/gravatardownloadpixmapwidget.h
/usr/include/KF5/gravatar/gravatarresolvurljob.h
/usr/include/KF5/gravatar/gravatarsettings.h
/usr/include/KF5/gravatar_version.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/KF5Gravatar/
/usr/lib/x86_64-linux-gnu/cmake/KF5Gravatar/KF5GravatarConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Gravatar/KF5GravatarConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Gravatar/KF5GravatarTargets-debian.cmake
/usr/lib/x86_64-linux-gnu/cmake/KF5Gravatar/KF5GravatarTargets.cmake
/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_Gravatar.pri
/usr/share/
/usr/share/doc/
/usr/share/doc/libkf5gravatar-dev/
/usr/share/doc/libkf5gravatar-dev/copyright
/usr/lib/x86_64-linux-gnu/libKF5Gravatar.so
/usr/share/doc/libkf5gravatar-dev/changelog.Debian.gz