The future has landed in Wireless LEDs
ESPArtStick is a small wireless pixel controller designed to control a single addressable LED pixels/neopixels using a special shield and for the Wemos D1 mini.
Works with WLED, PIXELSTICK, EspArtStick SD , and FPP, xLights and many more
In the last few years, individually addressable RGB lights have been getting cheaper and better.
These lights contain a small controller chip alongside the RGB LED which makes it show a certain colour.