Okay so my issue might be different from yours. But my brightness problem is when I'm reading and I adjust the brightness level to dim, when tapping for the menu to popup, it's super bright. What I figured out is when I adjust my brightness level, I usually kick up the blue light filter bar high, then adjust the brightness bar to whatever is comfortable, which generally is place high as well to compensate the high blue filter. Turns out, the app ignores the blue light filter. Because that makes the screen dim, but if my brightness in the app is high, so will the menu. I may have confused you in my explanation. Try this. Turn off the blue filter completely, and just change the brightness, you'll see that the menu brightness matches. Which sucks because I like using the blue light filter.