This might look..
There was no Reputation notifications with the old design but now that the reputation notifications are implemented, it would be very nice to get my reputation feed to light up when I reach the daily cap. Instead of trying to figure out just if the 200 was reached by upvotes or accepted answers / bounties.
I know I could check in the https://meta.stackoverflow.com/reputation but then I'd have to keep track of the number of cap I had in the past and that's just not a viable solution.
Just make it light up as it does when you get a badge (maybe a different color would be nice too).
It is not an important feature at all but just another nice addition to the new top bar to make the users experience easier.