Frames around gtk3 apps in Xfce with compton enabled


As the title states:

I installed compton to get rid of the screen tearing on Xfce on my Tumbleweed install, but as a result, I get transparent glass-like frames around gtk3 apps. It’s actually a problem that used to have a solution listed here:

I did what the thread said, but it still doesn’t work. Any ideas where I could try next?

Thanks guys and gals!