As great as this sounds, I do have a couple of issues with it: Firstly, the sprite feature hijacks two existing properties instead of using its own, meaning that sprite-based rails can neither have puffs nor the maxdiff zigzag effect. Secondly, "FLASHPARTICLES" is something that should really be implemented as a "duration" property, instead of just another hardcoded time value.
Fullbright is flawless, at least.
