Yellow and orange dyes are from henna and saffron, blues dyes from indigo. The same process is used on the rug cooperative. None of this stuff by yourself are a offer breaker but are issues it is best to keep in mind as you store onilne for your Moroccan rug. https://caideneoxdk.blogolenta.com/23842870/what-does-moroccan-rugs-for-sale-mean