User Notifications UI

1. Notification Content App Extension

   Covers Customizing the Appearance of Notifications, UNNotificationContentExtension.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.

• Updates Web
• USBDriverKit System
• USBSerialDriverKit System
• USD Graphics and Games
• USDKit App Frameworks
• User Notifications App Services
• Video Subscriber Account Media
• Video Toolbox Media
• VideoDriverKit System
• Virtualization System
• Vision App Services
• VisionEntitlementServices App Frameworks