Element: textstyle.font
Element: textstyle.fontfont
The font associated with textstyle. This can be a system or graphic font, although some graphic primitives require graphic font textstyles only. If no font is defined, a null value is recorded, and a default graphic font is used at draw time.
The font member may be redefined but must be the same type (i.e. system or graphic) as the font it replaces.