The only specific thing for colour is your to-be-trans background needs to be black, and that's the case here so there's no problem with the decal.
Why the particles won't show up is because V11 broke this line:
orientParticles = true;
If set to true, particles won't appear at all anymore. I've posted about it in the bugs thread, pretty sure it will get fixed but for now you'll have to wait.