Awesome before I got into web design and became a "full stack developer" I wanted this same thing... asked about it on a forum. I'll have to read the article/check it out to see if you literally do something like pixel mapping or "Open CV" throw that in there to be safe. "Bit mapping?"

edit: I didn't ask if this was for web or app, it looked like it was for applications... wouldn't know how to do layout on that but can do it with HTML/CSS, maybe with Electron you could do that for Desktop apps, not sure about Android/iOS though.