Leaked design elements for the upcoming new Android version
The new, so called ‘Quantum Paper’ design is sleeker and takes inspiration from Google Now’s cards, implementing something similar in the notifications tray. Not just that - the whole ‘Quick Settings’ panel is richer in options as well. You can also see how much more functional the quick settings are as you can select a Wi-Fi network to connect to right from the notification dropdown, as well as check your data usage and see Bluetooth-paired devices.
This new design circles around flat icons with the traditional charcoal gray background color contrasting with white fonts, but the new element is the bright red used for toggles that really distinguishes them from the other visuals like buttons.
The card-like interface for notifications, on the other hand, reverses the colors as the background for it is white, while the fonts are in gray and black.
Android 5.0 Lollipop new design images
source: Android Police