title: vs code - inactive code highlighting
body: <p>language : c++<br>
  extension: "C/C++ ms-vscode.cpptools V0.9.3"  </p>
  
  <p><strong>How can I setup highlighting of code that has been deactivated via a #ifdef in vs code.</strong><br>
  vscode is not highlighting/greying-out by default and I can't find a way to activate it.  </p>