Help in GameMaker

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I am joining the Opera GX Game Jam contest and I don't know much about GML but I might be able to make something, I'm looking to see if anyone is good at pixel art/GML coding and wants to help. You can reply here or message me on Discord @Spidey #2021
Are there any resolution(room size) limitations for the opera game jam submissions? or some kind of screen ratios?
I want to try and make a game for the Opera GX Gamejam, im not 100% with GMS yet but I am learning it and am confident in coding, the only problem is, im not great at Pixel art. If your good with pixel art, msg here or dm me on Disc: Super ShadistarY#8472