Paint.NET :: Fast-painting Using Undo Stack And Saving Undo History

I think it'd be so cool to be able to replay your entire undo history of a picture, so you can see and show others how you proceeded on a picture you made. That way, it's never necessary to capture screen video for like 10 hours and stuff..

So first you'd need to add an option to save the undo history (so that you always keep the history from when you started). Then you'd need an option to playback the undo history.