Serial LEDs are easy to use in MPF. You can use WS2811 christmas lights as GIs. I use a few hundred of those in my machine. Docs are here: https://docs.missionpinball.org/en/latest/mechs/lights/leds.html#serial-leds and https://docs.missionpinball.org/en/latest/mechs/lights/ws2812.html.
Jan