Make a preview for profile pictures

(I'm addressing myself to discord developers that would be looking for good ideas to implement)

I know some people (including me) that, when we change our profile picture, would like to test it directly to see how it renders in real time, but there's no preview system that allows that and we're forced to save (upload) the profile picture change and that makes a useless upload. After 2 or 3 tries, we're blocked and need to wait some time and of course that's not really convenient when we were trying lots of profile pictures / gifs. A good thing to fix that would be to be able to see a preview in real time and to be able to choose if we want to keep the profile picture or pick another.

Thank you for reading and please tell me if this would be possible.