Red screen for Apple iOS devices
How to Make Your iOS Device Have a RED SCREEN The purpose of this procedure is to give you a way to use your device outside at night without destroying your eyesight's dark adaptation or annoying your fellow stargazers. Every screen will be safely tinted red. 1. On either your iPhone or iPad, tap on the Settings app. 2. Find and tap General then Accessibility then Display Accommodations. 3. Now find and tap Color Filters. 4. You should see a screen of colored pencils. 5. Slide the Color Filters switch to the right (ON). 6. Scroll down the same screen and tap Color Tint to check it. 7. Just below, move the INTENSITY and HUE sliders fully to the right. You should now have a reddish screen. 8. At the top left, tap “Back” twice, returning to the Accessibility screen. 9. Find and tap Accessibility Shortcut. Tap Color Filters to checkmark it. 10. Exit the Settings app. Now, whenever you triple-click the device HOME BUTTON, you see the Accessibility Shortcuts popup, and you can toggle Color Filters on or off. The change persists through all apps, locks, notifications, pop ups, phone calls, etc.