Is there a way to "unbold" threads that are read in the Today's Posts listing

[SemperFideles]

I'm kind of surprised but the Style variables don't really have a variable for visited links or for read or unread posts.

When I go into a specific forum, it is possible to see the threads that have been read or not. When I click on Today's Posts (or New Posts), all the thread titles are bolded whether they have been read or not.

I spent a couple of hours trying to find the CSS that was causing this. I found in the threadlist.css this code:

.threadbit .threadtitle_unread {
	font-weight: bold;
}

I can see the threadtitle_unread referenced in the source code for a Today's Post listing.

The other CSS referenced for those threads that have been read it "title" and the only place I can find that in the CSS is in threadlist.css here:

.threadbit .title {
	background:transparent none no-repeat {vb:stylevar left} top;
}

I tried adding a font-weight normal statement but then it unbolded all the search results.

I just find it odd that there is even a reference in search results template to an unread tag that bolds the text but all the results are bolded.

Can somebody suggest how and where I might modify the CSS so I can have read posts unbolded in the Today's Post display?