Within the graph, fonts are defined by three components separated by a , character,
Font Face - Specifies the Type face
Font Style - Specifies the style ( plain, bold or italic )
Font Size - Specifies the size in pixels.
The font faces available can vary from machine to machine however
the following values are almost always available,
Please note the type face names are case sensitive, i.e.. courier is not the
same as Courier.
The font style can be plain, bold, italic or Bold and Italic which
are represented as follows,
plain - N
bold - B
italic - I
bold and italic - BI
Font sizes are represented by integer numbers relating to the point
size. Generally the size can range from 6 to 44.
12 point Arial, plain would be represented by "Arial,N,12"
12 point Courier, plain would be represented by "Courier,N,12"
10 point Helvetica, italic would be represented by "Helvetica,I,10"
12 point TimesRoman, bold would be represented by "TimesRoman,B,12"
14 point Sansserif, bold and italic would be represented by "SansSerif,BI,14"