OK, so we all have a pair of raw denims which came with yellow stitching for some reason... and maybe it will look better if that stitching was black. Or, definitely, it will look better black. In my case I got an awesome deal on a denim/leather Rick Owens DRKSHDW jacket which is looking a little nineties for my taste, since it has contrast stitching. Has anyone ever colored over their stitching with a permanent marker? What were the results? Did it last? Would you recommend it?