Stick spring festival scrolls why are some other peoples of yellow or green?

65 years of my stranger, that moment has seen have Tie Lu (blue) with powdery spring festival scrolls, also had consulted old gentleman for this thing. The gentleman tells me, the old person in the home dies, the son should defend filial piety 3 years. First a Spring Festival not Tie Chunlian, the 2nd Spring Festival is Tie Lu (blue) spring festival scrolls, spring festival scrolls of pink of post of the 3rd Spring Festival, to the 4th Spring Festival just be to mix the post is bright red spring festival scrolls like normal time. And see green (blue) other people of powdery spring festival scrolls, must not go wishing complimentary family a Happy New Year " had spent the New Year " . Because the family is defending filial piety. This not Tie Chunlian also may not is the other people that defend filial piety. I in one's childhood, the Spring Festival that minority crosses the Han nationality not Tie Chunlian. Green now (blue) powdery spring festival scrolls is extremely scarce, because spring festival scrolls is presswork mostly,be, imprint into that is lubricious who to sell. Moreover the tradition is progressively and missing, include me, parents dies, flat a few years not post think defend filial piety. Direct post is bright red after 4 years spring festival scrolls. This reason has 2. One: ? ぁ of Miao of Sai Ye of Pai of Yue of dew of  of ィ of ÷ of armour of heart to joke 6 him? writes ugly, cannot buy black-and-white again green (blue) powdery paper spring festival scrolls.