/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/ is in ubuntu-ui-toolkit-theme 0.1.46+14.04.20140408.1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/ListItemOptionSelectorStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/MainViewStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/OptionSelectorStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/Palette.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/TabBarStyle.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/artwork/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/artwork/chevron@27.png
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/artwork/chevron_down@30.png
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/artwork/tick@30.png
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/parent_theme
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Themes/SuruGradient/qmldir