Play with your clicky buttons and watch them twinkle!
You'll notice that the buttons respond very nicely to the first few presses -- the non-animated patterns. As soon as the neopixel patterns become animated the buttons don't respond as well. Neopixels don't like to be interrupted when they've been given a task, and the Adafruit Neopixel library's animated modes don't play well with button presses. We'll fix this by using the FastLED library and fancier microcontrollers in the next section.