All uploaded cover images must meet the following requirements:
File Type: .jpg, .jpeg, .tiff, .png
Dimensions: 1500x1500 pixels minimum, 3000x3000 recommended (square only)
Color Model: RGB
Note: the 1500x1500 pixel minimum requirement will be increasing to a minimum of 3000x3000 pixels sometime in the future. We currently accept 3000x3000 so we recommend you begin adjusting to submitting the larger images now, so the eventual transition is a smooth one.