I think that how my now playing screen has changed recently, the screen used to be separated into what I would describe as two coloured zones vertically, now its three:
See the grey area at the bottom then the darkened see through area above that then the actual picture of Beck. It used to just be the grey at the bottom and then the Artist picture with no inbetween section.
I wish I could describe that better, does anyone know if what I am seeing is correct ?
An issue with the browser engine used by your TV,
possibly nothing anyone besides the manufacturer of the TV can do something about it.
An artifact of dynamic backlight setting for higher contrast.
A user might want to see if there are settings to control/disable dynamic backlight as a test but it might not be desirable to have it constantly disabled (ability to fix this depend on use-case and available options in the TV itself).