Why not just... Go full 3D for the UI using webgl, and... Use doom's wad format like json files to store sounds, textures, geometries, scripts... And everything... Yes

Come on, it's almost 2021 now

@AOU

How comes, that everyone here has this fancy "suspicious behavior"-tag?

Edit:

Cool, now I have it too! Fancy!

AOU trying to support all the new features & CSS (youtube.com)