my picture is all messed up

[Sharond88]

I just purchased an unlocked galaxy s4 changed some settings in the start up menu and now any image I look at on my phone looks like a negative, how do I change this back to normal picture mode. I've looked all thru my settings and can't figure it out.

 

[B. Diddy]

Welcome to Android Central! Go to Settings>Accessibility​, and see if there is a Color Inversion setting. Make sure it's off.