Some other properties are excluded ?

[David Bovill]

Anyone know what these mysterious other excluded properties are?

Not every property is included in the properties property. The following
> types of properties are excluded:
> * Read-only properties
> * The script property and custom properties
> * Synonyms: Only one synonym for each property is included.
> * Duplicates: Properties that are functionally duplicated by other
> properties are not included. For example, the rectangle property is
> included, but not the height, width, top, bottom, left, right, or location
> properties, because you can derive all of them from the object's rectangle.
> * Properties other than object properties: Global properties, local
> properties, properties of a character or chunk in a field, and adjectives
> such as short that are implemented internally as properties are all
> excluded.
>
> * Others: Some other properties are excluded.
>