VERY new to leatherwork (though I've had a few lessons), but I've already got a request from a friend of mine for a piece. Thing is, she wants it in mint green (specifically, the color of mint chocolate chip ice cream)- a color I haven't seen as a dye, but an image search shows is possible for leather. I'm thinking I'll have to mix Aqua and Kelly Green dyes. Any tips on achieving this shade?