When colour reversal is enabled on the LG smartphone, colours are reversed, for example, white becomes black.

Android 9 | LG UX 9.0
Colour Inversion -  Open the  Settings
Colour Inversion -  Tap on  General
Colour Inversion -  Tap on  Accessibility
Colour Inversion -  Tap on  Vision
Colour Inversion -  Enable or Disable  Screen color inversion
  1. Open the Settings
  2. Tap on General
  3. Tap on Accessibility
  4. Tap on Vision
  5. Enable or Disable Screen color inversion

LG Instructions
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