Red loyalty, purple filial piety and black powder are old.
Water white evil, oil white arrogance.
Yellow and greed, blue and brave and green.
Gods, buddhas and spirits are shining with gold and silver.
For example, the red-faced Guan Gong symbolizes loyalty; The black-faced contractor symbolizes integrity; The white face Cao Cao symbolizes treachery. . . These are all personalities.
Xia Houdun has a red dot on his face, which means that he was injured by an arrow. The Monkey King is a monkey face; Dou Erdun's eyebrows are painted with a pair of double hooks, which are the weapons he uses; There is a fish of yin and yang on Jiang Wei's face, which shows that he knows yin and yang and gossip. . . These are all characteristics.