was wondering how i could do this

[ValleyOfMist]

http://i.imgur.com/PTOQry1.png
i was wondering how u could like do those black tile things in windows 10 >_>

 

[USAFRet]

http://i.imgur.com/PTOQry1.png
i was wondering how u could like do those black tile things in windows 10 >_>

Fences, from Stardock.
http://www.stardock.com/products/fences/