I think you missed my attempt at humor - as did my downvoters. Digital color storage approximates the real world, which has an infinite number of colors for a g

I think you missed my attempt at humor - as did my downvoters. Digital color storage approximates the real world, which has an infinite number of colors for a given portion of the EM spectrum. So "All" suggests "we got 'em all!" as opposed to 2^24.