I have been experimenting with that and must say it can be made to work pretty well, but at the cost of losing the buttons. I see little point switching to Qt to get the exact same look as I do with the GTK version, so I may as well stick with GTK. The GTK binary is also about half the size, works faster and has fewer dependencies.
QListView::item{ background:qlineargradient( spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(80, 80, 80, 255), stop:0.8 rgba(80, 80, 80, 255), stop:1 rgba(48, 48, 48, 255)); border-width: 1px; border-style: solid; border-radius: 12px; border-color:rgba(80,80,80,255); } QListView::item:selected{ background:qlineargradient( spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgba(128, 128, 128, 255), stop:0.8 rgba(128, 128, 128, 255), stop:1 rgba(48,48,48,255)); }