How do I change the background of photoshop
Please read this post. At first glance, you might think I'm some photoshop noob who wants to make an image transparent. Far from it.
A few weeks ago while keyboard smashing because my computer was being slow I somehow managed to make the entire backdrop of my photoshop blue. Don't ask me how. I don't know. That's why I'm posting here.

My question is how do I reverse this? I want it to be the default color again.
Anytime I google it I get hit with the obvious "uhhhh use the pen tool or the magic wand or the eraser"
NO. That is NOT the question I am asking LOL.
Anyways. This has been really annoying to deal with so any answers are more than welcome. Thank you.
