Thomastik String color code

[Sergio Barrozo]

I've played in a bass with Thomastik strings and I liked those strings very much. I would like to know what type of Thomastik were those strings; they all were red in both ends.
Anyone knows the Thomastik bass strings color code?

[Bergerman]

Me thinks Spirocore Mediums.

[Phil Rowan]

Red bottom/red top: Mittels
Red bottom/purple top: Weichs
Red bottom/green top: Stark
Red bottom/yellow top: Solos