Hollyday lights

I have some zigbee rgb light bulbs mounted outside, in my exterior walls, illuminating my garden and house.
Now I have a node red automation to turn them on at sunset and off at sunrise, with some mods (brightness and temperature).
But I want them to work differently in halloween and christmas! But I can’t find anything to put them working like randomly, with the apropriate colors, and randomly flashing and blinking and “breathing”.
Any help?