How to Make Multiple Particle Textures

So in the particle renderer settings there is an option of how many materials to render but it only shows one material. I have four different materials and I want each particle to randomly pick one. So how would I do this? Thanks

Particle systems have no such functionality. You'd need four different particle systems to do that.

they actually do… there is a particle renderer…

//
particleSystem.renderer.material = … random material…

You can store the materials in a random array…