Must be an integer. Specifies a font names for the folder, doc and date items, respectively. Controls the vertical spacing when a content item is displayed in two lines. Must be an integer. Controls the horizontal alignment for the buttons.
Higher number pushes the buttons to the left.
Must be an integer. This param specifies the data for the applet. Each content item is specified by four fields separated by a semicolon. The first field is a number and it refers to the hierarchy level of the tree. The tail gets a number that is one greater than its head.