/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/ is in ubuntu-ui-toolkit-theme 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/Themes/SuruDark/1.2/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.2/MainViewStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.2/OptionSelectorStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.2/Palette.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.2/TabBarStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.3/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.3/OptionSelectorStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.3/Palette.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.3/SuruDarkNormal.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.3/SuruDarkSelected.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/1.3/TabBarStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/artwork/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/artwork/chevron@27.png
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/parent_theme
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruDark/qmldir