Enable Dark Screen on Samsung

Question

I'd like to try out the dark screen mode on my Galaxy J7 max but the option has been greyed out and I was wondering why. Any clues? This option is found under Accessibility>Vision

Answer 1

If you turn on the talk back feature, dark screen will work but if you turn talk back off, dark screen stops working. I think this is because it was only made for the purpose of privacy for people who have bad vision and need talk back.