Is it legal to photoshop the background of a visa photo?

My friend is applying to get a visa for the USA. Her photo has a blue background, which I can photoshop out pretty easily.

However, is it legal to do this? There is absolutely no detriment to the usefulness of the photo, in my opinion.

It's a little harder to get a photo like this than you'd think where she is from, but we can get one if needed.