I answered that earlier in the thread.
You can simply use !$online, or whatever the actual param name is (I haven't seen the code yet).
Having an indicator for not online seems superfluous to me.
If there's no green dot then they are obviously offline.
This is only my opinion, guys. Just I would like that this is implemented directly in the core, but if this is not the case, it does not matter.That's basically what I was inferring by "I've only consulted myself, though".