What do people of all colors on the aircraft carrier do?

In order to make the ground crew work orderly, according to the different division of work, their work clothes are different in color. When they are in their respective positions, the commander can see them at a glance, which is very convenient for command. Clothes come in seven colors: purple, blue, green, yellow, red, brown and white. Wearing purple overalls and purple helmets are jet fuel crew members, which earned them the nickname "purple grapes" on the ship. Dressed in blue are elevator operators' associations, aircraft moving and blocking personnel, tractor drivers and heralds. Dressed in green are ejection and blocking equipment personnel, support equipment maintenance personnel, aircraft maintenance personnel, cargo handling personnel, photographers, helicopter landing guides and so on. Dressed in yellow are the aircraft ejection commander, the steam catapult operator and the aircraft parking dispatcher. Dressed in red are ordnance officers, catapult safety observers, plane crash rescuers and explosive ordnance disposal personnel. Dressed in brown are the sergeant of field machinery and the inspector of flight equipment. Dressed in white are landing guides, oxygen workers, medical personnel, quality managers, squadron inspectors, transition workers and safety observers.