System and Application Theme

Is your feature request related to a problem? Please describe.
System theme and Enatega Application theme is contradicting with each other.

Describe the solution you'd like
When the user install the enatega application and uses it, the application should be able to pick whichever theme system is already using.

Start by locating the application's theme handling and the code that detects the system theme; the issue does not name files, tests, or an entry point. Trace how system and application themes are selected, then verify that a newly installed application follows the device theme without contradicting it.

Written by the indexing model from the issue text.