color/colour

In almost all programming, American spellings are used. So as programmers we use colors, even though we would normally spell the word colours.

For most programming, colors are described by the amount of red, green, and blue light to emit. These numbers are normally in the range 0-255. In Pygame Zero, we list these as a tuple (red, green, blue), such as:

(0, 150, 255)

You can use the Google Color Picker to find different colors, and then copy the RGB value listed.