Contribute cover: Sphere Redux (unreleased)

  ______   __   __    ______    _____   
 /_   _//  \ \\/ //  /_   _//  |  ___|| 
   | ||     \ ` //   `-| |,-   | ||__   
  _| ||      | ||      | ||    | ||__   
 /__//       |_||      |_||    |_____|| 
 `--`        `-`'      `-`'    `-----`