Brightness helpers are a small family of utilities: overlays, extra sliders, night tints, reading filters. Publishers add an auto-brightness override because the system one is “not aggressive enough.” Testers turn that override off without meaning to, usually while hunting for the tint.
The hour after that tap is the part we study. In Preference Recovery Sessions we prepare the phone with the override already off and the screen darker than the room. The task is simple: put it back. We do not name the control.
Most testers open the system display settings first. That is rational. Brightness lives there on every phone they have owned. When the system slider moves and the screen stays dim, they open the utility. Then they look for a word like Brightness. If the override is labelled Adaptive, Ambient, or Intelligent dimming, they scroll past it.
One tester in a March session in Petaling Garden spent eleven minutes in the notification shade, tapping the system brightness icon, before she asked whether “this extra app is even still installed.” It was. Its settings were under a hamburger that opened a page of colour presets. The override sat at the bottom, below a banner.
If your utility changes a system behaviour, the reverse control has to use the same word the person used when they noticed the problem. They will not search for your brand name. They will search for brightness, and they will look in the system first.