Hi @Gurki,
Yeah, that’s an internal API, not sure if changing the particles color on runtime is exposed on a public API.
In any case, if that works for you to change all RGB values do this:
this.entityParticleEngine.particlesystem.colorGraph.curves[0].keys[0][1] = red;
this.entityParticleEngine.particlesystem.colorGraph.curves[1].keys[0][1] = green;
this.entityParticleEngine.particlesystem.colorGraph.curves[2].keys[0][1] = blue;
And at the end I think you still need to rebuild the graph, do check this if it’s required.