This class represents the richmediasettings dictionary. This is definitively detailed in:.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 334, page 697.

Adobe Supplement to the ISO 32000, BaseVersion: 1.7, ExtensionLevel: 3; Table: 9.50, page 78.

System.Object
    WebSupergoo.ABCpdf14.Elements.Element
       WebSupergoo.ABCpdf14.Elements.RichMediaSettingsElement

A rich media settings dictionary controls when and how a rich media annotation activates and deactivates. The Activation entry holds the activation dictionary; Deactivation holds the deactivation dictionary.