Base theme: Added references to the working examples page
Merge pull request #4635 from pjackson28/addbasethemeexamples

Base theme: Added references to the working examples page
Charts - Docs of Preset configuration options
Documentation: Added themes and style section and WET theme placeholder documentation
Merge pull request #4636 from duboisp/v4.0

Charts - Docs of Preset configuration options
Merge pull request #4637 from pjackson28/addwetthemedocs

Documentation: Added themes and style section and WET theme placeholder documentation
Documentation: Added variants section
Merge pull request #4638 from pjackson28/addvariantsdocsection

Documentation: Added variants section