FULL STEPS:

1. In the system settings of the device, select a dark theme.
2. Download app.
3. Open app.

WHAT YOU EXPECTED:
The theme of the application corresponds to the theme of the system. And when I change the theme in the system settings, the application automatically also changes the theme.

WHAT ACTUALLY HAPPENS:
The application theme is Light by default. And when I change the theme in the system settings, the application theme does not change.