Change navigation bar color on Delphi

  

In every program I write on Delphi for Android the navigation bar is white and no transparent.
I have a Galaxy A50 for test, with dark mode enabled.
How can I change the color or the transparency on navigation bar.
I don’t know what is wrong. The mobile, Delphi or the AndroidManifest.
I don’t know what to try (except the Form.Fullscreen).
sample screenshot
Thanks.

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