	Name	Description
	markCount	Returns the number of marks associated with the ArtPage.
	selectedMarks	Contains a list of all the currently-selected marks.

	Name	Description
	addMark	Appends a mark to the page.
	forEachMark	Calls the specified function once for each mark on the page.
	getMark	Returns the mark at the specified Z-index.
	getZIndexOfMark	Returns the Z-index of the specified mark.
	loadFromJson	Loads marks from a JSON string.
	removeAllMarks	Removes all the marks from the page.
	removeMark	Removes one mark from the page.
	reorderMark	Reorders a mark within the Z-order of the page.
	saveToJson	Saves marks to a JSON string.

	Name	Description
	markAdded	Indicates that a new mark was added to the page.
	markChanged	Indicates that a mark on the page was changed.
	markRemoved	Indicates that a mark was removed from the page.
	markReordered	Indicates that a mark was reordered within the page.
	markSelectionChanged	Indicates that a mark was selected or unselected.
	marksLoaded	Indicates that marks were loaded from a JSON string.