Welcome! You found a CS First Starter Project for the Art theme. Watch this video at CS First to learn how to build it: https://csfirst.withgoogle.com/c/cs-first/en/art/digital-art/computers-art-and-pixels.html If you're a teacher: Lesson plans are also available on the CS First site. If you decide to sign up for a CS First account, you'll be able to track your students' progress, order physical materials (kits), and access your students' projects in Scratch.
