The CGA pallet was 4 colours and there were four of them. You had to switch pallets manually. There were essentially two pallets with a 'brighter' version avail

The CGA pallet was 4 colours and there were four of them. You had to switch pallets manually. There were essentially two pallets with a 'brighter' version available. If done correctly and with composite output, it looked passable. 99% of the time though people just used the default pallet with magenta and cyan on TTL display.