what is the size of this ?
Viewing post in Ages Past - Gameboy Monsters comments
Well, in my case, these are sprites made to emulate the gameboy aesthetic from the '90s. The pixelated look is sort of the point!
(To answer your question, the original gameboy screen was 160x144. I got my start playing Zelda fangames in an engine that uses a 256x224 resolution. I tend to play with 2x zoom, but obviously that's still not anywhere close to fullscreen.)
But even outside of that, people selling assets here are generally going to converge on a couple specific sizes. If you hire dedicated artists to make a game, then yeah, they can work at whatever resolution you want. But someone who's buying assets needs them to fit together coherently. That'd make more niche sizes harder to use, and potentially harder to sell, I'd expect?