1. Look at the following code with Creator's built-in code mode:

   #include <iostream>
   
   using namespace std;
   
   int main()
   {
   #if 0
       cout << "Hello World!" << endl;
   #endif
       return 0;
   }
   

   The output will be masked with a gray background because it won't be compiled.

2. Try the same with the Clang code model.
   No gray background there.

The Clang code model should mask this code, too.