Customizing the Expand and Collapse Icons
You can customize the expand and collapse icons in the Table of Contents by modifying or replacing the following files:
• expanded.gif — Indicates that contents of heading are visible
• collapsd.gif — Indicates that contents of heading are hidden
• leaf.gif — Indicates lowest level subheading in a heading (for example, page with folded corner)
• empty.gif — Acts as a place holder
These files are located at Arbortext-path\framesets\.