Recently on Habré there was an indication of new comments not only when viewing a specific topic, but also when viewing the tape.

The total number of comments is indicated in green, the number of new ones is marked with a plus sign and in red.
At the same time, the number of messages for the current day is indicated by a green digit with a + sign throughout Habr.

It seems to me that such color coding is not entirely logical. In addition, it is logical to assume that the number of 6 + 5 means 11 comments, but this is not the case at Habrapractic.