/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/ is in qtdeclarative5-ubuntu-settings-components 0.7+16.04.20160321.1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/AllTrafficWithDns.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/AllTrafficWithoutDns.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/InvalidCert.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/NoCert.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/NotInstalledWithRoutes.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/NotInstalledWithoutRoutes.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/SetUpUnused.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Settings/Vpn/PreviewDialog/SomeTraffic.qml