Change icons in Silverblue?

Is there a way to change the default icons in Silverblue? I am look for a way to install the paper icon theme? Or maybe the materia icon theme? Not sure where to find them or how to do it. If indeed it can be done.

I searched on flathub for materia:
Flathub—An app store and build service for Linux

Doesn’t install, unfortunately.

You should probably just layer the icons package you’d like to use.