### 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/browser/win/dark_mode.cc
fnAllowDarkModeForApp _AllowDarkModeForApp = {};
  
  typedef PreferredAppMode(WINAPI *
                           fnSetPreferredAppMode)(PreferredAppMode appMode);
  fnSetPreferredAppMode _SetPreferredAppMode = {};
  if (g_buildNumber < 18362) {
    get_ux_proc_from_ordinal(135, &_AllowDarkModeForApp);
  } else {
    get_ux_proc_from_ordinal(135, &_SetPreferredAppMode);
  }
  
  g_darkModeSupported = _RefreshImmersiveColorPolicyState &&
                        _ShouldAppsUseDarkMode &&
                        (_AllowDarkModeForApp || _SetPreferredAppMode);
  if (!g_darkModeSupported) {
    return;
  }
  
  if (_AllowDarkModeForApp) {
    _AllowDarkModeForApp(true);
  } else if (_SetPreferredAppMode) {
    _SetPreferredAppMode(AllowDark);
  }
  _RefreshImmersiveColorPolicyState();
  
  g_darkModeEnabled = _ShouldAppsUseDarkMode() && !IsHighContrast();
}
}  
namespace electron {
void EnsureInitialized() {