I only have experience with Unicanitor and Concor. Succeeded very well on Unicanitor, a bit less on Concor. Use leather dye from a shoe repair shop. I must admit, that I use black shorts only. Don't see a reason to use different colours.
However, I don't have the impression that the clothing takes a lot of the dye off from the saddle. But the risk is all yours.
I only have experience with Unicanitor and Concor. Succeeded very well on Unicanitor, a bit less on Concor. Use leather dye from a shoe repair shop. I must admit, that I use black shorts only. Don't see a reason to use different colours.
However, I don't have the impression that the clothing takes a lot of the dye off from the saddle. But the risk is all yours.