How do I change default options in Libraries (Wind.7)?

[giova]

Hi to all! I want to change this area (Icons-fonts).Thank you!

 

[giova]

I fοund the solutions with tutorials (at least for icons).


It' s great forum!
I have a small (and for this reason I don't want to begin a new thread) unrelated question: Can I find folder icons BUT the preview (thumbnails) be maintened as the default Icon folders of Windows? I can't find such an icon. I don't know if I'm clear... Sorry for my bad English , I am not a native speaker :Ρ Τhank you!