Take pictures of your screen in Java

I already know about pressing F2, but that's  a hidden feature that you can't do very much with.

In Bedrock edition there is a camera icon that takes a picture of your screen, then you can see all your pictures, make them your world picture or make them into your profile picture. Java should have this too, and a few other ideas:

Pictures can be copied from Minecraft or downloaded into PNG (If this isn't already a feature)

MAYBE Pictures should be able to be pixelized and placed on picture frames