Right, this is my point. Having lovely hookup diagrams, interactive code editors and Doxygen output for the API is nice, but... What's needed is a mid-level i

Right, this is my point. Having lovely hookup diagrams, interactive code editors and Doxygen output for the API is nice, but... What's needed is a mid-level introduction to the library once you've gotten past the basic tutorials and solid examples for the commonly used API calls (most of which are simple, but still).