As you can tell by the screenshots, certain Hangout elements remain the same, though this is still a pretty big departure from Hangouts current look. Kiersch says the experience is still very much in the experimental stages and that it relies on extension APIs in the Chrome’s developer channel. There’s also likely some bugs and other kinks to work out.
So how confident are we that these images are legit? While nothing is 100% certain, it’s important to note that Kiersch has revealed several work-in-progress Google projects in the past, including Google Stars. That means his track record is pretty clean, which lends credence to this rumored cosmetic overhaul.
[Source: Android Authority]