The more I see of this building, the more I'm starting to think the glass is blue. I think the black that we're seeing is actually the plastic protective layer that you'd see on a sheet of plexiglass. Dotted around the building there are windows where this outer layer is missing and the glass seems more reflective and a little bluer. Plus, all of the glass balcony doors seem blue as well. I don't think the final product will be that tropical ocean blue from the renders, but I do think it will be more blue than black. I still don't know if that's the case with the spandrel, though. Maybe the coating on the spandrel is opaque? I'm assuming that if there is a protective layer, it won't be removed until the brickwork is done on the tower. Anyhow, here's a couple pictures that kind of illustrate my point. What do you guys think?
Blue balcony doors.
Random windowpane top right looks different than the rest (more blue/more reflective). Again, balcony doors also look more blue.
Closeup of the lower panes from yesterday.