Whether it's the simple elegance of a square rotating 18 times in 20 degree increments or animated string art, there is a lot to be fascinated by in this chapter. What's more, you could spend hours exploring these patterns one angle at a time. While not every project has a need for drawings, adding a strategic drawing to help with level transitions or as an indicator that something happened can add a nice design touch.

The color sprite and app we created in this chapter should go into your backpack so that they are available for use in all your Scratch projects. You never know when you need to find a specific color. Likewise, the custom blocks we created for our home and shapes projects would be nice additions to your backpack.

In the next chapter, we'll explore our physical world by adding the PicoBoard, our webcam, and our computers' built-in microphone to our Scratch projects. We'll capture environmental effects that we can use to control our projects or that we can display via...