When this icon is selected, the window representing the relationship between the CSS objects is displayed. This representation is "minimal", in fact, in addition to the structure numbers, 3 types of icons are displayed :
- Icons representing several elements : 
(YELLOW
icon)
- Icons representing a single element : 
(WHITE
icon)
- Icons representing object calls : 
(execute
structure icon)
Three menus are available File, Edit and Options