useOSConvert "P3 3 2 255 255 0 0 0 255 0 0 0 255 255 255 0 255 255 255 0 0 0" ;
val it =
fromList[0wxFF, 0wxD8, 0wxFF, 0wxE0, 0wx0, 0wx10, 0wx4A, 0wx46, 0wx49,
0wx46, ...]: BinIO.vector