Indeed, Thunar is doing this. AFAIK, there isn't any spec concerning mounted/unmounted volumes display, so you can't really rely on different icons. That's why it has been decided to display umounted volumes with a more transparent icon.
Indeed, Thunar is doing this. AFAIK, there isn't any spec concerning mounted/unmounted volumes display, so you can't really rely on different icons. That's why it has been decided to display umounted volumes with a more transparent icon.