Any documentation on the Widget Library?

Hi, InSpired Community - 

Is there a knowledge article or documentation that contains a list of all the current widgets in the Widget Library, and summary of key attributes / what is configurable and where it can be deployed?

I’m working with our summer intern on a projet to utilize Custom Pages and it would be very helpful to have a table or PDF or some documentation I can refer to that explains the intent and basic config paramaters of all the current widgets. 

I was only able to find the Product Update announcing expanded library (but not specifics on the widgets themselves) and a 3-year-old article on home page widget recs.  Thank you!