Android O Changelog :
Unmentioned Changes (First Android O Preview Build):
- The new Android O update will let you customize the Navigation Bar on all phones which has to be activated by unlocking the System UI tuner with a long press in on the settings icon in the notification center.
- The same way LockScreen shortcut customization’s can also be done which has two different shortcuts apart from the default camera and dialer.
- There is an inverted light theme in display options. Tapping on this invert option actually “inverts” the color of the notification panel and toggles. You need to restart the device for changing or inverting the theme.
Source : NPU