Hi, this is an old issue, I just want to bring it up again because there doesn't seem to be any progress in fixing it. It is not a critical bug but still rather annoying. Some devices are set to switch to dark mode automatically at night and then windy is inconvenient to use. One would think that all it takes is to hard-code the text colors if you don't want to bother with having two different themes :-)
Previous threads eg:
https://community.windy.com/topic/26848/dark-mode-in-android/14
https://community.windy.com/topic/29102/forecast-data-showed-for-a-specific-location-are-almost-unreadable-with-dark-theme-on-android/5