Instead of start and end colors, have an array different colors?

[issy123]

As title says so you can define something like colors:[0xFF0000,0x00FF00,0x0000FF]

[andrewstart]

If you want different starting colors, you'll need different emitters. If you wanted to cycle through a list of colors for each particle, you could try using the value-lists (https://github.com/pixijs/pixi-particles/tree/value-lists?files=1) branch of the runtime that I began experimenting with (no editor support yet).