My banner looked like it was made during a power outage with MS Paint. I was one bad design away from deleting the whole channel. Then this one guy on my Discord server—usually full of nonsense—actually dropped something useful: this guide on
youtube cover size. I clicked expecting garbage, but it was clean, sharp, and made me realize what I’d been doing wrong. Finally got my banner to show up properly on all screens. About damn time someone explained it right.