OK, I encountered a weird bug caused by KlipKeeper, though I ignore whose fault is. So, I type 'kk' as usually, and select some text I recently copied. The portion of text is a bit long, and as KlipKeeper only shows a tooltip if it's in "+sall" mode, I have the idea to scroll the window horizontally, which to my surprise is possible. After some milliseconds scrolling, the text gets unreadable, so I hit the left key to see if scrolling back solves the issue. Then FARR jumps to the normal view populated by the recently launched programs, clearing the 'kk' from the search box, and bolding all the text beside every result. Weird.
So I exit the program, after fiddling with the fonts settings to no avail, and it seems that exiting the program solves the issue. But, oh tragic fate, once I type 'kk' again, the world goes to bold text again. So, did I hit a weird bug or what?