The font cache re-runs every time you change your fonts folder. It's like what you do with `fc-cache`, but on Windows you get per-application caches for apps t

The font cache re-runs every time you change your fonts folder. It's like what you do with `fc-cache`, but on Windows you get per-application caches for apps that uses fontconfig (they carry their own copies of fc). Every time you install a new font or update your system, you have to do a recache for each of these apps.