Another issue in current Qt theming: I have Vivacious-Dark-Graphite icon theme seleced in GTK, it has inheritance sequence: Vivacious-Colors-Dark,Vivacious-Colors,ubuntu-mono-dark,gnome,hicolor
GTK applications (like volti mixer) correctly use icons from Vivacious-Color-Dark (i.e. /usr/share/icons/Vivacious-Colors-Dark/status/24/audio-volume-medium.png) Qt5 applications (at least qasmixer which is the reason I'm here) seem to skip one and get icons from Vivacious-Colors (i.e. /usr/share/icons/Vivacious-Colors/status/24/audio-volume-medium.png)
