A space separated list with 2 items:

   1. the fixed font family used by pfm;

   2. the fixed font size used by pfm.

If the size is preceded by a '-' sign, the size is in pixels, else,
the size is in points (= 1/72 inch).

The default is: courier -12

If the name of the font family consists of more than 1 word, enclose
it in curly braces { and }, as in

{luxi mono} -12

Always choose a monospace font for this option. Otherwise the output
from reports and queries will not be aligned properly.

