Option to preview pixel art sprite diff (file compare) with crisp (nearest neighbor) scaling on Ctrl + mouse wheel up

I'm working on a 2D pixel art game and while the diff image panes are useful, the images are very small and require me too zoom with ctrl + mouse wheel up. However this leads to blurry pixel art.

I'd like an option, either a button or right-click menu, if possible saved per repository (useful for a whole project in pixel art while others are in HD), to scale the image with nearest-neighbour algorithm to show crisp pixel art.