Who can tell me who Facebook stands for?

The colors of Cao Cao's, Zhang Fei's, Bao Gong's and Guan Yu's facial makeup are as follows:

Zhang Fei-the face of a butterfly with a black face and a black cross-the butterfly flies, and the word "fly" is hidden. The leopard's head is surrounded by eyes-it is fierce and brave. Laugh and be furious-this "careless" is a real person.

Cao Cao-white face with water and white background, hooked with blue stripes (in traditional Chinese opera, blue is black), with a single red dot between the eyebrows, accompanied by blue stripes. Personally, I feel kind and smiling. Once you get angry, you will stare at your eyebrows, which is very scary.

Guan Yu-the idea of "red face" means loyalty. Sleeping silkworm eyebrows and phoenix eyes indicate the demeanor of a Confucian general, and a long beard indicates majesty.

Bao Gong-black face, in Beijing Opera, his facial makeup belongs to "black face" (the whole face is painted black), which symbolizes that he has a strong will, is not afraid of violence, does not flatter powerful people, and is not selfish, and is known as "impartial".