Help Samsung Mega Negative screen

[20GT]

My wife's phone just did something weird, everything is in negative color. I thought it was a theme, but couldn't find anything on her phone. I emailed myself a screenshot from her phone but when I viewed it on my phone it was ok.

Her phone


Exact same file viewed on my phone

 

[scary alien]

See if she went into the Settings app and selected Accessibility -> Display -> Color inversion (or a similar setting (your might say "Negative color", etc.; it's one of the last options on my device).

It's actually a pretty cool effect .

 

[20GT]

Ok that was it
I was looking for something in the display settings