After the OTA it's solid black in 3rd party launchers. Some people say that it's still transparent with the stock launcher but I wouldn't know. I've tried setting the transparency with GravityBox but no dice. One thing I did that helps make it more tolerable is shrink the height of the navbar. Mine is at 60% so it's a lot less obtrusive and the lack of transparency doesn't bother me so much. Plus, the extra screen real estate is always nice.