The phone app was updated with a Holo design, the ability to send pre-configured text message responses in response to incoming calls, and visual voicemail integration within the call log display. The web browser app incorporates updated versions of WebKit and V8, supports syncing with Google Chrome, has an override mode for loading a desktop-oriented version of a website rather than a mobile-oriented version, as well as offline browsing. The "Contacts" section of the phone app was split off into a new "People" app, which offers integration with social networks such as Google+ to display recent posts and synchronize contacts, and a "Me" profile for the device's user. The camera app was redesigned, with a reduction in shutter lag, face detection, a new panorama mode, and the ability to take still photos from a video being recorded in camcorder mode. The photo gallery app now contains basic photo editing tools. The lock screen now supports "Face Unlock", includes a shortcut for launching the camera app, and can house playback controls for music players. The keyboard incorporates improved autocomplete algorithms, and improvements to voice input allow for continuous dictation. The ability to take screenshots by holding down the power and "Volume down" buttons together was also added. On devices supporting near-field communication (NFC), "Android Beam" allows users to share links to content from compatible apps by holding the back of their device up against the back of another NFC-equipped Android device, and tapping the screen when prompted. Certain "System" apps (particularly those pre-loaded by carriers) that cannot be uninstalled can now be disabled. This hides the application and prevents it from launching, but the application is not removed from storage. Android4.0 introduced features for managing data usage over mobile networks; users can display the total amount of data they have used over a period of time, and display data usage per app. Background data usage can be disabled globally or on a per-app basis, and a cap can be set to automatically disable data if usage reaches a certain quota as calculated by the device. Android 4.0 inherits platform additions from Honeycomb, and also adds support for ambient temperature and humidity sensors, Bluetooth Health Device Profile, near-field communication (NFC), and Wi-Fi Direct. The operating system also provides improved support for stylus and mouse input, along with new accessibility, calendar, keychain, spell checking, social networking, and virtual private network APIs. For multimedia support, Android4.0 also adds support for ADTS AAC, Matroska containers for Vorbis and VP8, WebP, streaming of VP8, OpenMAX AL, and HTTP Live Streaming 3.0.