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

Android 9 (LG UX 9.0)
Step 1:  Open the  Settings
Step 2:  Tap on  General
Step 3:  Tap on  Accessibility
Step 4:  Tap on  Vision
Step 5:  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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