The item graphic is an optional graphic displayed to the left of the cell of the first or only column. The item graphic can be of any size and any number of different graphics can be used. In a fixed height tree control, all item graphics used must be the same height and width (Item.Image). In a variable height tree control, item graphics can be of varying height and width.
Default and individual graphics can be assigned to items. Items.ItemImageExpandable, Items.ItemImageExpanded and Items.ItemImageLeaf are used to define default item graphics. These defaults can be overridden using the Item.Image property.