Other coloured tracer BBs?

[ShirouYashaGintoki]

So I saw someone mention on Reddit that they had seen Blue tracer BBs somewhere in 0.2g weight. I know tracer BB colours have to do with the amount of light required to illuminate them and being able to store the light etc to remain illuminated properly. So I thought I'd try reaching out to this platform to see if anyone knows of any 0.2g or 0.25g BBs that come in colours other than the standard green or red.

 

Any info would be appreciated, thanks!

[hitmanNo2]

Madbull do blue tracers but only in 0.12 I think.