Nope, Not since the mid nineties. I was working in the mast repair shop in 95-97 when they told use to start painting them flat black and not grey with black spots. apparently it wasn't an effective camoflauge.
When surfaced, the bridge access hatch can be optionally open or shut, however, when submerged it is required to be shut. (Really a no s***t precaution from a procedure in use in the sub fleet today.)