In the last talk-through, we explored how to use the color picker to easily find a color. Since you can't see the color picker in action in our talk-throughs, here's a GIF of it being used:
Recording of the color picker being used to change the background color.
Click anywhere in the numbers to get the color picker to pop up. Then, click on the right hand color bar to change the general color you're picking, and click in the left hand side to change the lightness/brightness of the color. You'll get to try it in the next challenge!