Folder label highlighted???

[ArisHorizon]

Hello !
The labels of my folders are highlighted but I haven’t changed anything and I can’t understand why and how to fix it. Any ideas ?

 

[rpmurray]

Maybe it's because without the highlighting you'd have black text on a dark blue background which would be hard to read. So the OS may be showing the highlight to add some contrast. Have you tried changing the background color to see if that makes a difference?