font (Lepton EDA Reference Manual 1.9.18)

Valid in: Special font files ONLY

type character width flag

Pos.	Field	Type/unit	Description
#	type	char	F
1	character	char	The character being defined
2	width	int/mils	Width of the character (mils)
3	flag	int	Special space flag

This is a special tag and should ONLY show up in font definition files.
If the font character being defined is the space character (32) then flag should be 1, otherwise 0.

Example:

F 11 1

The above font definition is for the space character.