They probably meant 16-bit palette, which typically allocates 5 bits to red, 6 to green, and 5 to blue. It was typical of computer games in the early noughties

They probably meant 16-bit palette, which typically allocates 5 bits to red, 6 to green, and 5 to blue. It was typical of computer games in the early noughties. It gives you a reasonable range of colours with only 2 bytes per pixel, which mattered then! EDIT: Oh, and green gets the extra bit because your eye can perhaps perceive more shades of green than other colours.