Red coloured words in tournament chat?

While at 1 of the hourly tournament pages, I noticed red wording in the chat. What is it? I’m guessing it’s a private chat to me? How do I do that as well?
I’m only aware of opening a whole chatbox popup privately to that user.

I think that a line in the chat is red when someone mentions your nick.
For example:


I just want to clarify that it is not private, it is only highlighted for you so you don’t miss it.


Ah I see. Is the red also only viewable by me? In all cases most people don’t seem to be able to see it but me and get confused by what I’m asking

From the comment right above yours: