A dictionary of all referenceable entities in the presentation.
In other words, all entities that might be included through a -ref element in the format. This is purely a file format concept; all that matters when an entity is inserted by a reference is that there has been an entity of the same type and with the same content inserted previously (or at least that is how I understand it. I might be wrong about it). That means we need to know all entities in the whole presentation to resolve references.
- Note
- The dictionary contains (among other things) all master styles, therefore we do not handle them separately. (We might do that in the future, to ensure correctness of the format.)