Google Font Pack : + 2000 TTF (True Type Fonts)  under open license but is not of concern as you don't distribute them and use it in the  studio app (graphic editor) to parse the fonts and generate glyph shapes from them. The fonts pack is downloadable from Googles -  Github : https://github.com/google/fonts 

Symbol Catalog : with thousands of symbols of things covering a wide variety of subject matter like - technology, commerce and nature etc ... constantly being extended by  catalogers. All symbols are in a path format stored within the database and can be sent from a specific catalog in the web portal to any repository.  The symbol catalogs can be accessed from the left catalogs link. There all the catalogs are browsed through at right and an SVG repository symbol library to import it into is selectable from at left 

Symbol Template : created through shaping in a designer whereby an initial shape can be created and other shapes assert an influence over it such as add, subtract, exclude or intersect their own area. They can be contained in a portable template that is persisted in an industry standard  JSON. The  studio app can export and import these into compositions. It is advised to save to one during design sessions before finally committing the composition to the repository after review approval 

Symbology Template : created through adding and manipulating shapes, text and symbols on a canvas. However references to symbols are unique to each repository having their own libraries of symbols. They can be contained within a portable template persisted in an industry standard JSON. The  studio app can export and import these into compositions. It is advised to save to one during design sessions before finally committing the composition to the repository after review approval 

Animation Template : created through adding and manipulating animation actions and effect filters on visual elements in a canvas. They can be contained within a portable template persisted in an industry standard JSON. The studio app can export and import these into animations. When imported the app validates visual element references only attaching to existing elements. It is advised to save to one during design sessions before finally committing animations to the repository after review approval