Here’s another request for help I got recently. In this case, the iPad foreground and background colors were inverted or reversed. That is, the screen was white on black instead of black on white, like a photo negative.
Somehow I accidentally changed my screen to give me a negative (black
and white look) and now I can’t figure out how to change it back to
Go to Settings > General > Accessibility > Invert Colors
Set this to OFF.
iPad Basics Video Lessons