This package consists primarily of SASS specification files in the core/pattern-library
directory.
You can build a demo file which will appear in the styleguide directory like so:
script/setup
script/build
The files of interest in using the library are
headers.scss, which you can@importto make mixins and placeholders available for useelements.scss, which applies those stylings to particular classes and element types
The visual reference for the Pattern Library is here The documentation with kss examples is here