How do I customize a logo for a card?

To change the logo, sign in to your account online at http://keyringapp.com. Click on 'edit' next to the card you wish to change. Then select 'edit' under the logo of that card and upload a file of the logo. You will have a chance to crop your image after upload. Please upload only .png or .jpg files that are 100x100 pixels. Files size should be less than 1mb.