iPhone screen flickering colours

Hello tobey256,

Welcome to Apple Support Communities. We understand that you're experiencing issues with your display. Do you only notice the screen flickering when using Night Shift? Does it happen when using a particular app or is it a random occurrence? Does restarting your iPhone temporarily fix the issue?

See: Use Night Shift on your iPhone, iPad, and iPod touch

Take care.

My iPhone 11 Pro has been doing the same thing. Screen flickers in different apps but only with night shift & True Tone enabled. Sometimes it’s quite noticeable.