Go to the app store (iOS or Android) and find and install the Adafruit Bluefruit app on your smartphone.
Launch the app. Make sure you're in "Central Mode" and that your Circuit Playground Bluefruit is powered on. You should see the CIRCUITPY drive appear on the main screen. If it's not there, try pulling down to refresh or restarting the app.
If you still don't see it, try re-uploading your code, making sure you have all the libraries installed. It won't work without all the libraries! CircuitPython still lets you save the file without throwing an error, so double check you've got everything you need.
Click Connect, then Controller > Color Picker. Choose a color and press the "Send selected color" button. Your luminaries will update with the new color. Like magic!
Now go back to the Control Pad. You'll see four buttons and four arrows. The number buttons will select between the four color palettes you made, and the up and down arrows will speed up or slow down the animation of the gradient.
I made my capacitive touch buttons match up with the buttons in the Bluefruit app, so my four switches work the same as buttons 1-4. You don't need to do it this way! Dig into the code a bit and you'll find it's fairly simple to add or change palettes or functionality in the code. Create your own magic luminous color modes and UI to suit your home and sensibilities.