# Unity Library Manifest

> Introduces Unity Library Manifests and explains how Unity uses them to generate the final Android App Manifest for an application.

A Unity Library Manifest is the main Unity manifest and contains information about the Unity Player and its [activity](https://developer.android.com/guide/components/activities/intro-activities). Unity uses a default Unity Library Manifest during the build process to generate the final [Android App Manifest](/engine/6000.0/manual/platform-specific/android/introducing/manifest.md) for the application. For more information on how to modify this file, refer to [Modify Gradle project files](/engine/6000.0/manual/platform-specific/android/building-and-delivering/modify-gradle-project-files.md).

## Settings

A Unity Library Manifest declares:

* The Unity [activity](https://developer.android.com/guide/components/activities/intro-activities).
* The theme that the Unity activity uses.
* The application's category [(App Category)](/engine/6000.0/manual/platform-specific/android/getting-started/class-player-settings.md#AppCategory)
* Permissions.
* VR modes.
* VR performance.
* Whether to allow the user to resize the application window. This is useful for VR.
* The maximum aspect ratio.
* How to react to configuration changes.
* Supported orientations.
* Supported launch modes.

  **Note**: Unity only supports the [singleTask launch mode](https://developer.android.com/guide/topics/manifest/activity-element.html#lmode).
* Android UI.
* Whether to use hardware acceleration.
* Which features the application uses such as a gamepad or touchscreen.
* Which graphics APIs the application supports.
* Whether the application supports notches on the device.
* The initial window size.
* Splash screen configuration.
* Whether to extract native libraries when installing the application.
* Which devices the application can run on.