title: changing to dark in Themeresource for a simple windows app
body: <p>Recently I have started exploring VS2015 and I went through the basic tutorial of how to create a hello world using c++ in VS2015(<a href="https://msdn.microsoft.com/en-us/library/windows/apps/hh974580.aspx" rel="nofollow">https://msdn.microsoft.com/en-us/library/windows/apps/hh974580.aspx</a>).</p>
  
  <p>After copying and building the exact same thing, the background color that I got was light instead of dark like the example shown in the link. I know ThemeResource is responsible for the background color and there are light and dark color scheme.How do you use dark instead of default(light)?</p>