Personally I favor Deadeye's eye-killing seizure-inducing flashes, that should probably be the default. But I know there are mixed feelings on that option.
I agree with what everyone is saying about distinguishing between events, but I think we should still have the other option. (less distinguishing between events) The default should make a good distinction between events though.
By the way, I like the second idea David put in his latest post. But maybe the lines he added don't need to be so dark. Something like this?
Also, I would be interested to see what all the different options look like with subevents.