Why does the screen on the Xiaomi Pad Mini appear reddish or greenish in Reading mode?

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If the screen on the Xiaomi Pad Mini appears reddish or greenish in Reading mode, you can refer to the following methods:
Method 1:
  1. Go to [Settings].
  2. Tap [Display & brightness].
  3. Choose [Color scheme].
  4. Swipe down to reveal the circular color temperature dial and adjust the color temperature to reduce the degree of color cast.
  1. Enter [Settings].
  2. Tap [Display & brightness].
  3. Select [Reading mode].
  4. Tap [Classic].
  5. Find the color temperature bar. You can adjust the Color temperature bar to adjust the screen color temperature.