I run KDE Plasma on my Antergos machine. But during the system installation I always go for Gnome and install Plasma and it’s stuff later. The reason for this routine is that I use an app called MyTourbook which demands Gnome, otherwise it crashes constantly.
If I want to change an icon theme or system fonts, I have to do it in qt5ct as if I do it from the system settings, it has no effect. How can I get System settings to be in charge again?