This dialog is used to add icons with text labels to an icon view. New
items are added by clicking
New Item, then typing
in their text in the Text line edit. Items can also be added or deleted
in code. You can either use the default icon or choose your own by
clicking the ellipsis button to invoke the Edit Pixmap Collection dialog. The
pixmap can be deleted by clicking the scissors button, and the item can
be deleted by clicking it then clicking
Delete
Item.