Why Code Library is nearly empty? While checking up results at forums, nearly I can not find what I'm looking for. To speed up this process. You may add more examples from stuff to the Code Library. Specially about extending current version of widgets, I think it will give a better understanding of the kendo api.
The purpose of the code library section on our site is to accommodate examples from community contributions primarily, Ugur. My colleagues added a few examples in some of the categories there over time, but the reason why some of the sections are still empty is that there are not much community contributions there yet.