Actually, they aren't actually lit. It's just that Saradomin and Armadyl's icon has a bright color compared to Bandos and Zamorak which is black.
So i'm by the door, first of all you see the shaking and such, then you try open the door. My message was "The door doesn't seem to budge". I have all god items to prevent people attacking me but it looks like only Armadyl & Saradomin are lit up, don't know why...very strange
And when standing next to the door, no monster attacks you unless you're already under attack by them. (If I remember right)
Also, before this update, when you stood next to the door, the killcount counter would disappear. With this update, it's still there. (Might have been a bug before that is now fixed)