Check out this mockup:

here is the link to that guys onedrive folder:
http://1drv.ms/1ApKxek
In my opinion this looks great so I hope that MS would do something about that, of course they need some refinements. The file explorer in its current state is outdated.
That guy has a uservoice here
https://windows.uservoice.com/forums...ss-transparenc but his problem was putting to many suggestions in one uservoice post. MS added the transparancy effect and marked this suggestion as done.
Here is another uservoice:
https://windows.uservoice.com/forums...riendly-modern
I don't like his mockup, but his suggestion is basically what we/I want. MS even answered that we should keep voting for it. ;)