Those Qt widgetstyles are provided by those packages: % rpm -qf /usr/lib64/qt5/plugins/styles/adwaita.so adwaita-qt5-1.1.0-2.1.x86_64 % rpm -qf /usr/lib64/qt5/plugins/styles/libqgtk2style.so libqt5-qtstyleplugins-platformtheme-gtk2-5.0.0+git20170311-6.14.x86_64