Kano Play is set up to use a player's "Gravatar" as their game picture.

Gravatar is an independent system that lets users upload custom images to use as avatars on different websites. You can sign up for an account on the Gravatar website.

Once you are signed up, you can upload an image for use as your Kano Play avatar. Just make sure the image is attached to the same email you use to log into your game, and Kano Play will automatically grab it from your Gravatar account.

Just a note, it sometimes takes a few minutes for your new picture to update to the game. You might also run into an issue where the image won't change despite uploading a new one; just be persistent, try again or attempt to refresh and clear your cache. It should work pretty soon after.