I have a YouTube channel of course and I always have this problem with uploading a background to my channel. For some reason the picture usually comes out to blurry, small or large and I need some help on why the picture uploads like that! I am using paint.net but for some reason my picture always uploads on my YouTube channel all messed up. When I go to view it in Windows Picture Viewer it shows up fine but when I upload it to YouTube as my background it turns out crappy.
What resolution should I make my background for the new new YouTube channel layout also called Cosmic Panda?