How do I set up a system sound theme in i3wm?

Like the title says, I would like to get a working sound theme. Currently it’s the cpu beep which makes me jump ever time lol. I have libcanberra installed as well as the Smooth theme from aur but I can’t seem to get anything working. I also enabled event sounds and input feedback sounds in gtk settings and even tried manually adding gtk-sound-theme-name=Smooth to ~/.config/gtk-3.0/settings.ini. I feel like there’s something fundamental that I’m missing here but I couldn’t find anything after a few hours of searching.

Thanks for any help in advance!