Challenge: Sunny snowy day

 is a programming challenge in the Intro to JS section. This challenge practices coloring with code.

Steps
There are four steps in this challenge:
 * 1) Color the background: This step asks users to color the background of the program by using a    command.
 * 2) Color the ground: This step asks users to color the ground by using a    command.
 * 3) Color the sun: This step asks users to color the sun by using a    command.
 * 4) Color the snowman: This step asks users to color the snowman by using a    command.

If users get stuck
If users get stuck, they should:
 * Pay attention to Oh Noes and the error messages.
 * Go back to the "Coloring" tutorial.