Yes, one thing is button vs background colour, but I was more concerned with the placement of the buttons. I mean that "Reset all data" button is almost at the middle of the screen and it looks like the most important button. On the other hand, the "Back" button feels like it's thrown between buttons (by that I mean "Back" button should be more seperrated). My first thought was that something didn't load properly.
I think moving down both "Reset all data" and "Back" buttons would help.
But maybe that's just me ¯\_(ツ)_/¯