Table 1 lists all of the graphical primitives. Any term constructed from these primitives can appear as the contents of a diagram specification. Integer units refer to dimensions in pixels.
Options appear within a list as the first argument to a graphical primitive term.
The different kinds of options are listed below. The result of supplying more than one option of a particular kind is undefined. This option specifies the relative placement for items within a larger unit. Other choices are square , angle and round . Valid choices for name are smile and frown .