Sony Android TV "Settings"

Hi,

I'd like to influence the settings of my Android TV (at the moment mainly the Display settings like brightness, black level,...).

I've looked in
https://developer.sony.com/develop/tvs/android-tv
https://developer.android.com/training/tv
but couldn't find any useful information.

Seeing as they're settings, I've retrieved the content of

/data/data/com.android.providers.settings

via backup (my TV is not rooted) and looked at the settings in the hope that they might have been extended to contain specific TV settings. Unfortunately, that seems to not be the case.

The only settings remotely interesting are

screen_brightness

screen_brightness_mode

which correspond to
https://developer.android.com/refere...EEN_BRIGHTNESS
https://developer.android.com/refere...RIGHTNESS_MODE

Nothings specific to the TV.

A browse through
https://android.googlesource.com/pla...id/tv/settings
didn't enlighten me either.

The process list yields a few interesting processes that might handle settings, like

com.sony.dtv.configsettings

com.sony.dtv.seconddispsetting

but I haven't found any information on those in the net.

Does anyone here have any pointers on how to access (Sony) TV settings?

Any help would be appreciated.