new layout banner resolution?


where the fields are green and the air fresh
hey ya all.

so youtube is changing, no changing that...
so, we will have to be flexible... now then, I HAVE MADE NO PREPERATIONS AT ALL Dx.
i know practically nothing about the new layout exept that we get a banner instead of a background.
so can you guys give me some details on the new stuff? i want to make a banner but i have no idea what the size of that is going to be, and i would like to start working on it as soon as possible... thats a bit difficult if you dont know how big it should be huh? i dont wand to end up with something like black bars in the banner.

if any of you know, plz tell me :)