But now you know about how things work, it wouldn’t be too different. I can’t remember if it has any options to change aspect ratios. Experiment to find out what work for you! These custom console themed overlays for Retroarch were assembled and designed to look they way they do by me, Orionsangel. You may need to return it to a 4:3 ratio if using a border, since it’s essentially outputting what a SNES would output to a TV, which would be a different ratio to a game boy console. For Pokémon yellow though, you’re in luck. But not sure if these are the closest one. I personally like 'lcd-grid-v2-gba-color-motionblur.slangp' for GBA and 'gameboy.slangp' for GB. At least in my case I have these (below list).

If you use mgba, if should load up the super game boy enhanced borders. Look in the handheld folder inside the shader directory of RetroArch. You will then have borders around your screen and will be playing in a postage stamp window. If you do this, turn off bilinear filtering in the menu one screen back. Even thoughĬhanging it to integer scale mode means it will only scale it using whole number multiples. It might still look crappy, since it’s trying to interpolate half pixels, stretching it to a weird shape. You can even change things on a per game basis. 1)scroll right to the two wheel cogs (settings tab) 2)scroll down to Onscreen Display and click X on your controller. To chance it within a core, start a game in the desired core, go back to the menu, which should take you to the quick menu, then scroll down to find the appropriate settings to change. You can specify to have the core set the aspect ratio instead. Keep in mind, this is changing it globally across all systems that use Retroarch. I think the game boy is actually close to a square, using a 10:9 ratio. Assuming you’re using mGba, if you go in the settings>video>scaling within Retroarch, you can change the aspect ratio.

Retroarch console borders