In this chapter, we learn to
add extensions to the Editor,
set up/initialize RGB LEDs,
program RGB LEDs to light up in different colors/patterns,
loop (part of) a program,
delete blocks.
Activity Code: https://makecode.microbit.org/_07Y89z0D1Pkj
Sample Code: https://makecode.microbit.org/_4LUJ1RgmKXm3