What the favicon?

Ok, so a while back I activated a theme which replaced the standard favicon.

Now I’m using Graphine and it supports a favicon by adding a URL. I’ve done this but the favicon from the old theme still shows. I’ve also gone through the entire directory looking for the favicon file and replaced it with the one I actually want to use. The old one still shows up! I’ve cleared my cache and restarted my browser.

What the favicon?
https://www.ketsdeverconstruction.com