There are many complains about the lack of dark theme in the new release in emails and in the store comments. It is totally understandable. The dark theme is in progress, and will be released in a few days, also with some adjustments on the light theme too.
To prevent similar issues in the future, we would like to start a beta testing program, you can join by dropping a mail to [email protected]. With the help of services provided by Crashlytics you will receive beta builds automatically when available to evaluate the new features, and provide feedback to aid our decisions and focus.