Help overlay for centering profile picture

I would assume I'm not the only one to have an issue centering their profile picture :P I think it'd help a ton to have a tiny little overlay when changing your pfp that shows two thin lines crossing, and rather than just being a solid color it'd help to have it be the inverted colors of the content underneath; this helps distinguish the center guide no matter what the image looks like. A small button within the image editor could also help if one doesn't want to see the grid for whatever reason. I've included a mockup demonstrating this.