You should see eight boxes: 2 red, 2 green, 2 blue and 2 white, in that order.
Note: The rest of these boxes each depend on the previous box (as a way to test getImageData), so if the red box is wrong these will all probably break.
Note: If you saw 2 blue and 6 white boxes there may be an ARGB/RGBA conversion issue when translating to/from Flash.