How can I best enable my app to support Dark Mode?

To best enable your app to support Dark Mode, you can follow these guidelines and best practices:

1. Use Semantic Colors: Utilize semantic colors like primary, secondary, and tertiary which automatically adapt to the current color scheme (light or dark). This ensures that your app's UI elements are always legible and visually appealing in both modes.

2. Adopt System Appearance: Ensure your app adopts the system appearance settings. This can be done by setting the UIUserInterfaceStyle to automatic in your app's Info.plist file. This allows your app to automatically switch between light and dark modes based on the system settings.

3. Test in Both Modes: Regularly test your app in both light and dark modes to ensure that all UI elements are displayed correctly and that there are no issues with contrast or readability.

4. Customizing App Icons and Widgets: In iOS 18, app icons and widgets can now appear light, dark, or with a tint. A tinted version of your app icon will automatically be available to your users after they upgrade to iOS 18. You can customize each version to ensure it looks great in all modes. This is mentioned in the Platforms State of the Union session.

5. Fallback Asset Types: Support fallback asset types such as UIImage and Image to ensure your app remains robust to upgrades and can handle different content types effectively.

6. Live Activities: If your app includes live activities, ensure they adapt to dark mode by using semantic colors and considering adjustments for always-on displays. For example, the system will automatically switch the color scheme to dark and set reduced luminance when the watch is in always-on mode. This is discussed in the Bring your Live Activity to Apple Watch session.

By following these practices, you can ensure that your app provides a consistent and visually appealing experience in both light and dark modes.