What official is wearing a black hat in Tsing Yi?

According to historical records, the black hat in Tsing Yi was an official hat in the Ming and Qing Dynasties, belonging to the top hat worn by senior officials above Yipin Guan. It is made of dark blue cloth, with a raised diamond at the top and a spherical thimble in the middle. The two sides of the hat are tilted upwards and tied at the temples with thin ribbon. During the Ming and Qing Dynasties, there were strict regulations on the variety, style and color of official uniforms and hats in China, which represented the rank, identity and authority of officials.