I got mine today - I think it's black. The "see-throughness" is overrated. I can see shapes through it, and I'm sure I could see the moon at night, but I doubt I'll be identifying constellations. And as for privacy - when you are changing clothes I don't think anyone will be able to tell that you got a bikini wax right before hitting the trail.
I set it up with the tarp under the ridgeline. I wasn't really able to get a tight enough pitch, but this was my first try and it was windy in my back yard (it is always windy in my back yard). I have a couple of days to putz with it before I take it out on the AT trail this weekend. I spent most of my time today just introducing myself to the tarp, fondling it, whispering sweet nothings in its ear, and staring at it with love. My dog felt seriously neglected.