Why does Peking Opera Mask solidify?

The red face symbolizes loyalty, faithfulness and blood, such as Guan Yu in The Three Kingdoms Opera and Wu Han in Cut the Sutra Hall. Others: satire, which means false good people. Lu stable boy: Wu Wujiang

Guan Yu's black face (red face) not only shows a serious character, but also shows no emotion, such as Bao Zheng in Bao Gong Opera; It also symbolizes strength, rudeness and boldness, such as Zhang Fei in the Three Kingdoms Opera and Li Kui jy in the Water Margin Opera. Others: indicates Yin in Yin and Yang. Used of ghosts. Black skin or ugly face. Zhang Fei's white face (black cross butterfly face) is treacherous and suspicious, such as Cao Cao in The Three Kingdoms Opera and Yan Song in Fighting Yan Song. Cao Cao's (white face) blue face shows his upright and defiant character, such as Ma Wu in Going to the Tiantai and Dou Erdun in Lianhuan. Dou Erdun's purple face is solemn, steady and full of sense of justice, such as Xu in Ergong and Zhuan Xu in Fishbone Sword. Others: bad complexion, ugly. Zhang He (Sanwazi) has a golden face, which symbolizes strength and solemnity and shows the role of a fairy. Such as Tathagata and Erlang God in a noisy paradise. Dapeng (golden elephant face) The green-faced tiger is brave and reckless. Others: outlaws. Others are yellow-faced, pink-faced and silver-faced.