Let's start by adding a background to the stage!

• On the left side of the screen, find and click on it once. Notice the blue blocks that appear below.
• Find the block labeled Subway. Click, hold, and drag it into the black space below, then release.

Now, you can change the background to any one that you want!

• Click Run to see the change you've made appear on the stage. Click Submit and Next to move on.