The best that I know at it, and I have seen him do it with new versions over the years... Just opens an image, and then presses every single button. He sees what it does, goes back with history, and starts with another one.
He does the same thing with page builders, flash, and everything else too. I won't say it works for me, but there is a method to his madness. Here is an example of his work.
Warning, it is a little deep and dark.
http://www.lowkeytx.com/Images/Jolenecathedral02.jpg