Allows to crop or provide custom desktop window sizes.
I like to have a lot of apps open but currently every window is displayed as a wide rectangle that I can only change the scale of. It would be great to crop some windows. I'm thinking of a music player where I really don't need to see everything on the page but only the play/pause/rewind/skip buttons. I also know that many apps have a responsive design and it would be great to resize some windows either live or pre-made shapes so some items could display in a mobile format. For one that would be great for web designers who are developing in VR. Also, in general, I don't always need to see all the details for all of my apps I have open so to be able to remove some of that detail could help me focus on what I need to get to first and foremost.