Test if windows is using light/dark theme

This is not yet battle tested

//using Microsoft.Win32
public bool WindowsIsUsingDarkTheme()
{
	var keyName = @"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize";
	var valueName = "AppsUseLightTheme";
	var value = Registry.GetValue(keyName, valueName, null);
	if (value == null)
	{
		return false;
	}

	if (int.TryParse(value.ToString(), out int result)){
		return result == 0;
	}

	return false;
}

Source: https://gist.github.com/secretGeek/fa0ea0039f0c5eaa7d122fe569fa2b44

Test if windows is using light/dark theme

See also