### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/main/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
- [X] I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.

### Problem Description

Developer cannot change caption bar theme. It remains white even if windows theme is set to dark.

### Proposed Solution

When themesource in electron is set to dark, use dwm window attributes or check an example here: [Notepad++ Source code](https://github.com/notepad-plus-plus/notepad-plus-plus/tree/master/PowerEditor/src/DarkMode)

### Alternatives Considered

Check out in Notepad++, Sublime Text, Windows Explorer, MSYS Console...

### Additional Information

_No response_
shell/common/api/features.cc
return BUILDFLAG(ENABLE_OSR);
}
bool IsPDFViewerEnabled() {
  return BUILDFLAG(ENABLE_PDF_VIEWER);
}
bool IsRunAsNodeEnabled() {
  return electron::fuses::IsRunAsNodeEnabled() && BUILDFLAG(ENABLE_RUN_AS_NODE);
}
bool IsFakeLocationProviderEnabled() {
  return BUILDFLAG(OVERRIDE_LOCATION_PROVIDER);
}
bool IsViewApiEnabled() {
  return BUILDFLAG(ENABLE_VIEWS_API);
}
bool IsTtsEnabled() {
  return BUILDFLAG(ENABLE_TTS);
}
bool IsPrintingEnabled() {
  return BUILDFLAG(ENABLE_PRINTING);
}
bool IsExtensionsEnabled() {
  return BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS);
}
bool IsPictureInPictureEnabled() {
  return BUILDFLAG(ENABLE_PICTURE_IN_PICTURE);
}
bool IsWinDarkModeWindowUiEnabled() {
  return BUILDFLAG(ENABLE_WIN_DARK_MODE_WINDOW_UI);
}
bool IsComponentBuild() {