You mean dashes? No, that just shows what can be used. For example: saying &"2Hello" will make you say "Hello" or "&3Hi" will be "Hi"
Ok here are all of them. &a = Light green &b = Blue &c = Light red &d = Pink &e = Yellow &f = White (normal text color) &1 = Dark blue &2 = Dark green &3 = Cyan &4 = Dark red &5 = Purple &6 = Orange &7 = Light gray &8 = Dark gray &9 = A bit lighter blue &0 = Black