F1 2011 Changing the color of the Pirelli tires for the 2013 season

[doberjam]

I'm reinstalling the version 2011portandolo f1 season 2013.
I remember PSSG open a file in which there were the textures of all the tires and from this I changed the colors (I do not mean cars/generics/f1/car_gen_high.pssg) but another file and I do not remember which one. Do you know which file contains the textures changed the tires, thanks.