The one I have is a dark maroon roof (looks to be same color as stripe between the 1st and 2nd floors on the outer walls) and the 2nd floor is a dark color. If it's green, it's an extremely dark green. The stairs/railings seem to be the same color as the 2nd floor walls.
I'll try to post a picture later.
-Dave
Sorry for the delay, I guess better late than never. Since it was a year and a half from the original post to the follow up, I'll hope the OP doesn't mind the additional week. 
I had less than optimal lighting set up for this quick snapshot, but the stairs/railings and 2nd floor windows are either black or such a dark green that I cannot distinguish it from black. It's definitely not the lighter green shown on the MTH website pic that is referenced above. The 1st floor windows and doors do match the color of the railings and 2nd floor walls.
As to whether the colors have changed over the years, I am pretty sure I ordered this when it was first announced, so it should be from the first run (I've had it for at least a few years, but didn't check my records for an exact date I bought it).
-Dave
