/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/ is in qml-module-ubuntu-components 1.3.1918+16.04.20160404-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.2/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.2/ComboButtonStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.2/PageHeadStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.2/PullToRefreshStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.3/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.3/ActionBarStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.3/PageHeadStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.3/PageHeaderStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/1.3/ToolbarStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Styles/qmldir