Have not conversed with the rest of the team, but, personally, I'm not opposed persay to AI, but would certainly put much higher value on hand made banners β I feel like AI lacks creativity, style? If that makes sense, but also If someone can make a decent banner with it I'm not opposed. Size wise, I'd probably shoot for something like 1000x500, though of I can downscale stuff as needed. 2:1-3:2 ish, other communities have banners to see (two ones I've quickly found is !green@lemmy.ml and !mechanicalkeyboards@lemmy.ml)
Yeah I'd say it's fine to submit even if it's obviously AI. Ideally a couple of options will get posted and we can see where the upvotes fall (may not happen, idk). Could be something good/cool/silly/ironic whatever the community wants the brand to be.