Because it was nothing, all undertaker sent a white envelope, just a yellow cowhide envelope, which was particularly conspicuous. There is also a person who has little respect for the deceased. He was smooth when he was born and aboveboard when he died, so he didn't need to wear any color. It's easy to make a white package, but it's not enough to wrap the gift with white paper. Just glue the interface. In this case, it is common to see money in a brown paper letter, ostensibly solatium, which can be used to express condolences to family members. All this was done after the funeral.