When you say “Vertical” do you mean like the 4K vertical in your link or a Vertical version for games with a vertical orientation. For the latter only MAME and Naomi are on my list. (Maybe FBA)
For the 4K vertical, I could try (Since everything is vector and adjustable) to square things up and see how they look for a drop-in replacement to the square bezel portion of your example graphic.
Let me play a bit. Of course I would only do system themes.) I would have to do console logo Marquees) and I would make them first HSM borders and second RA Overlays. Sounds like fun!
I have had my eye on these 4K Vertical things. I have a small office and it would make great space saving cabinet (Just a wall mount screen) with my X-Arcade control panel. (Maybe build a rolling stand for it.) (Also thinking about putting an ODROID inside the X-arcade CP.)
Well… it seems I talked long enough to get myself feeling a bit committed. (Don’t tell my wife. She’s already calling this my “New Never Ending Project”. )
@HyperspaceMadness How would we go about applying the shader to an image with this size and orientation?