Excellent decision here. I stand by my opinion that mobs that aggro NEED to have some sort of indication that they do aggro. Although I have a good understanding on what does and doesn't aggro by now, it is nice for new players who get frustrated when they die not knowing that information.

Implementing a toggle is easily the best way to appease both sides, and no one can be upset by this change. Personally i'll have it off, but the major thing here is we have a choice! Also good on them for fixing the size of the indicator, that is really the only thing I had a problem with.

Oh and forgot to comment on them adding the actual levels, that is cool with me, I was fine with the color indicator but this will work as well.