The release can be downloaded from the Starship Web site. A SimpleDocument class provides the general container object which the user populates with objects from the markup classes. The SeriesDocument class also provides a general style template for page generation based on Patrick Lynch's Web Page Style Manual at the Yale Center for Advanced Instructional Media. See that page for more insights into the design of good web pages. There is a class for each of the common HTML elements and all classes use initial upper case for their name.
All functions are lower case.
I tend to use all-caps names to signify constants. I also modified the class names to make them more descriptive than the HTML standard. For example, I use Image rather than IMG in hopes that the longer names will be easier for the user to remember while coding the Python scripts. Also there is no A class. A little odd case is the Paragraph vs. P classes.