Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Development: The process of researching, productizing, and refining new or existing technologies.
PowerPoint: A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.Management: The act or process of organizing, handling, directing or controlling something.
Office.js for PowerPoint is the least developed version of the Office.js APIs. Here is Microsoft's page showing all available objects. If it's not on this page, it doesn't exist (yet): PowerPoint Package