Blue font indicates an unread/unvisited link; grey indicates read/visited.
Sorry that's not right. Its blue or black - no grey, (I visit / read everything - some of which can be very boring - others very interesting)
Read/Unread are still the same as previous site. I tried where I have put comments in, but that is also still as the old site with the black dot marking the ones with comments.
I looked at real/never were to other types of topics but that does not fit either.
It is really of academic interest only as it does not seem to make any difference to topic or content, just intriguing.