Vibration Can set the vibration to a different vibration Reference: https://developer.android.com/reference/android/app/Notification.html#vibrate
Chrome Custom Tabs (Android’s Safari View Controller) Ability to load a web browser inside your app and leverage Chrome’s saved passwords. Supports displaying URLs without navigating the user away from your app and doesn’t require development to build a web browser in your app.
Advantages • Familiar UI • Cookies shared from browser to app • Autofill abilities (including passwords, credit cards, etc.) • Same Share menu
Customization • Toolbar color • Enter and exit animations • Add custom actions to App Bar and overflow menu
Developer Reference • https://developer.chrome.com/multidevice/android/customtabs