I thought this already existed though. Isn't it like you can have different bow particles for when you stat track it? If not you can just get a texture pack that changes the color.
I love the idea of trails. But if everyone had particles on there bow shots people who dont have as good computers will just have even more fps lag during conquest fights. So if there was a way to disable it during conquest battles to cause less fps lag. (If this was to be implemented)