Tuta said they use the default android date time picker. It always comes up white while both phone and app are set to dark mode on GOS.
On stock android (older version albeit), it does come up in dark mode.
All other date time pickers I could find were in dark on GOS.
The only difference, in case helpful to any devs, was their picker had a clear button.
Just looking for some understanding or useful information, as tuta is saying the issue is not theirs. Maybe I am missing a setting? Or maybe they're using an older picker?