[BRLTTY] totally dim screen new service independent on Brltty for Android suggestion

[Dave Mielke]

[quoted lines by Mgr. Janusz Chmiel on 2020/06/09 at 18:49 +0200]

>Dim screen of Talkback do not dim screen at all. Lamp is lighting. I need to
>have totally dark screen. May be that you could even provide a Java code for
>This service. But screen must be really dark. No text on it like Talkback
>dim feature does.
>It save battery life.
>If The screen is really totally dark at all.

Why not go into Settings -> Display, turn off Adaptive Brightness, and set the
Brightness Level seek bar as low as it'll go? That wouldn't need any new code
and will make the setting persistent.

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