Actually it's very interesting to do that:

Mac: http://i.imgur.com/vuoxgiQ.png

Android: http://i.imgur.com/dvhj28G.png

iPhone: http://i.imgur.com/x98rzDH.png

Chromebook: http://i.imgur.com/I7RfPME.png

Linux: http://i.imgur.com/D29vt3n.png

Ubuntu: http://i.imgur.com/78sxDgV.png

Google: http://i.imgur.com/fVVbyFq.png

Facebook: http://i.imgur.com/HCFdFom.png

Twitter: http://i.imgur.com/BsdhdyN.png

And of course, Hacker News: http://i.imgur.com/vJAoT7R.png

Here is the album: http://imgur.com/a/sTlND