To invert colors on an iPhone, you can use the "Invert Colors" accessibility feature. Here's how to enable it:
1. Open the Settings app on your iPhone.
2. Scroll down and tap on "Accessibility."
3. Tap on "Display & Text Size."
4. Under the "VISION" section, tap on "Color Filters."
5. Toggle the switch next to "Color Filters" to turn it on.
6. Tap on "Color Tint" to select it.
7. Adjust the "Intensity" slider to your preference. Moving the slider to the right will increase the intensity of the color inversion.
8. You can also adjust the "Hue" slider to change the tint of the inverted colors if desired.
9. Exit the Settings app, and the colors on your iPhone screen should now be inverted.
To quickly toggle the color inversion on or off, you can set up the Accessibility Shortcut. Here's how:
1. Go to Settings > Accessibility > Accessibility Shortcut.
2. Select "Color Filters."
Now, you can quickly invert colors by triple-clicking the side or home button (depending on your iPhone model).
Keep in mind that inverting colors may affect the appearance of images, videos, and certain apps, so it may not be suitable for all users or all situations.