A team from Hungary called Codebuild has imagined the way Android 5.0 would look like and this projects dates from before the KitKat announcement. We’re dealing with a minimalistic approach, one that feels a bit like iOS 7, if I can say so.
We’ve got a clean lockscreen with simple unlock options, nothing fancy. There are also extended widgets with swipe functions and a very discrete border-free look. You can now swipe down with two fingers to show the extended widgets and there’s a bit of a card-style UI going on here. The home and apps screen has been redesigned and so have the icons, as show in the Android 5.0 concept pics below.
The setting screen is now much cleaner and the notification bar has become transparent, from what I can see. The icons from the Settings area have become much simpler, being simply white symbols on a slightly transparent background. The dominant colors of this UI are blue, gray and apparently purple, although that may be caused by the background.