what design updates from iOS 18?

iOS 18 introduces several design updates, particularly in UIKit and other areas. Here are some of the key updates:

1. Document Launch Experience:

   • Redesigned launch experience for document-based apps, allowing full control over launch views and support for template document creation. This helps in creating a distinctive identity for apps (What’s new in UIKit).

2. Tabs and Sidebar:

   • Major updates to tabs and sidebar, including a new syntax in SwiftUI for declaring tabs and better describing app hierarchy in UIKit (What’s new in UIKit, Elevate your tab and sidebar experience in iPadOS).

3. Fluid Transitions:

   • Support for new fluid transitions across the system, enhancing the overall user experience (What’s new in UIKit).

4. UIUpdateLink:

   • Introduction of UIUpdateLink, which simplifies the implementation of complex animations requiring periodic UI updates. It offers features like automatic view tracking and low latency mode for drawing applications (What’s new in UIKit).

5. App Icons and Widgets:

   • App icons and widgets can now appear in light, dark, or tinted versions, providing a consistent visual experience across the home screen. Xcode supports dark and tinted app icon variants (Platforms State of the Union).

6. List Improvements:

   • New header and footer configurations that automatically update their appearance from the list environment trait, and new constructors for UI background configuration (What’s new in UIKit).

These updates aim to streamline the user interface, enhance customization, and improve the overall user experience in iOS 18.