Make a Color-Changing Silhouette Light

Onboard NeoPixels:
Set each LED individually

import board
import neopixel
from time import sleep
import random

RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
PURPLE = (128, 0, 128)

NUM_LEDS = 10
PIXEL_PIN = board.D8

np = neopixel.NeoPixel(PIXEL_PIN, NUM_LEDS, brightness=0.1, auto_write=False)

def ColorWheel(new_color):
    for i in range(NUM_LEDS):
        np[i] = new_color
        np.show()
        sleep(0.2)


while True:
    red = random.randint(0, 255)
    green = random.randint(0, 255)
    blue = random.randint(0, 255)
    next = (red, green, blue)

    print("Displaying", next)
    ColorWheel(next)
    sleep(0.5)