what changed the notification bar color?

[Android Central Question]

My girlfriend's Android LG phone's notification bar and bar at the bottom of the screen changed from white to red. All she did was put it into her purse while it was on. She can't remember what app she was using but the color change persists. And I can't find anything that changes just those UI items and nothing else without changing the theme.
Any suggestions or ideas?

 

[Golfdriver97]

Welcome to the forums. Is the battery low? It might be in power saving mode