Original post by: jmsfrgsn ,
T he photos look like negatives, and the home page changed to a white background. This phone is a LG K20 PLUS Android phone. I went into Settings, then Accessibility, then Screen Inversion, and I tried all of those shortcuts with no difference. Tapping on the home button three times quickly only takes me to the home screen does not change the pictures as they still look like negatives in gallery.