Contribute correction: Sphere Redux (unreleased)

             ___      _____     _____   
  ____      / _ \\   /  ___||  |  ___|| 
 |    \\   / //\ \\ | // __    | ||__   
 | [] ||  |  ___  ||| \\_\ ||  | ||__   
 |  __//  |_||  |_|| \____//   |_____|| 
 |_|`-`   `-`   `-`   `---`    `-----`  
 `-`