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How do you size the camera to fit the size needed on the youtube channel art? It says it's too small when I upload the image. I need to make the camera at least 2048 x 1152 pixels. It would be nice to have it at 2560 x 1440 pixels though. I tried the other questions, but it didn't make it any wider than it was before. The Y and X values under Resolution in Dimensions Under Render Settings just made the camera taller.