Originally Posted by kguil
All in all, I'd rather leave Marvin use physical brightness control and accept this iOS 'artefact'. In fact, all the apps I tried that let you change physical brightness manifest this behaviour. What do you think?
As far as I am concerned it is a minor annoyance and not something you should waste any more time on.
Looking forward to next months update. I would rather you had some time off or worked on that rather than worrying about the brightness issue that looks as though is is an Apple feature