For some reason, when I created my Xamarin project, my PCL folder is in the shape of two diamonds. Yet other projects I've looked at have a C# logo. Additionally, I can't add references to my PCL project which is why I'm trying to understand the difference. What's the deal?
What do I have to do to add references to some .dlls in the PCL? Change the project to that other type and copy and paste everything over?