type t = {
shift : int;
len : int;
mask : Stdlib.Int32.t;
}
val of_mask : Stdlib.Int32.t -> (t, [> errors ]) Stdlib.result
val of_mask_exn : Stdlib.Int32.t -> t
val convert_3_to_8_bit : int array
val convert_4_to_8_bit : int array
val convert_5_to_8_bit : int array
val convert_6_to_8_bit : int array
val color_of_pixel : t -> int32 -> int