I make my own PC 10 color by mixing black and a mustard yellow.
I find the decals to be very brittle in most of their kits. While they are of generally good sharp quality they tend to be too brittle and crack or flake off.
I have been making my own decals as of late and have been enjoying it. Here is Spad 13 of C0
Charles Biddle, 13th Aero. I did all decals for the plane. My decals are just as good and the paper is a little better!