Comment # 15 on bug 1191402 from Jebin S

(In reply to Fabian Vogt from comment #14)
> What's the output of:
> 
> gsettings get org.gnome.desktop.interface gtk-theme
> gsettings get org.gnome.desktop.interface cursor-theme
> gsettings get org.gnome.desktop.interface icon-theme

I tried the above with both export `GTK_USE_PORTAL=1`. For both, it comes out
to be Breeze.

> If any of those are not as expected, does it work after:
> 
> qdbus-qt5 org.kde.kded5 /modules/gtkconfig org.kde.GtkConfig.setGtkTheme
> Breeze

I still tried this when GTK_USE_PORTAL was enabled. But it had no effect. It
did not switch to breeze theme.