What is this HACs background image and how do I get rid of it?

At some point, this HACS background image showed up. With it comes a vertical scroll bar, just to get to the bottom of the word/letters. I have no clue where it came from or how to get rid of it. Its on every single menu.

Saw that this morning after a bunch of upgrades, so not sure which one may have done it. I tried clearing the browser cache, did not get rid of it. After about an hour, I cleared cache again, and it seems to be gone. Strange.

Try updating HACS and clearing cache. It’s mentioned on the 0.110 upgrade forum page