I saw the feature on Telegram, that it’s possible to change theme based on the light sensor from the phone, which is used to dim the screen on dark environments. Same feature would be really nice in Delta.Chat.
we have that on ios, where the system supports it.
not sure if there is any system support for that on android, maybe it is planned for some newer androids. however, that every apps decides on its own is probably not the best way to go for that.
I should add, that I’m using Android. To be more precise LineageOS 16.1. But I’ve seen, that it works in Telegram with Android 8.0.0 on Stock ROM for Galaxy A3 2017