hello folks, does any of you know of a way or any apps to lock the screen brightness. the reason is my 4 years old daughter uses it to watch nextflix all the time and she always watches it so close to her face in full brightness. like four or five inches away, and i think the full brightness will eventually hurt her vision. i adjust the brightness down to half way, but she knows her way around the system menu and and get the brightness right back to maximum again. right now she doesn't have any vision problem, its just a habit that she likes to sit so close to it. thanks for any help.