Drag the adafruit-circuitpython-circuitplayground_express-en_US-8.2.1.uf2 file to the CPLAYBOOT folder and wait for it to install and restart ...

Their iPad/iPhone compatible application is called “Circuit Playground ... the folks at Adafruit included that functionality along with the ability to customize the default LED list, I ...

The design is based on the Adafruit Circuit Playground Express, which sits directly in the middle of the light fixture. Surrounding it is a diamond-shaped strip of LEDs within an additional ring.