my lg stylo two plus is in black and white only

[AC Question]

last night I pluggedin my phone to charge andthis morning my screen was only in black and white

 

[B. Diddy]

Welcome to Android Central! Go to Settings>Accessibility and look for a Grayscale option. Make sure that's off.

Or it could be Reader Mode: https://forums.androidcentral.com/ask-question/781128-lg-stylo-2-plus-stuck-black-white-screen.html