Sets of initials or single letters can be drawn in a heavy, gothic form using any of the charge names monogram, letters, cypher, for example the monogram "kw" sable, or the letter "R" vert. In this case the quotation marks are optional but are recommended for readability.
You can change the font used by using constructions like:
Argent, the letter "K" in a script font azure or
Sable, the letters "AD" or, in the serif style
And so on. The currently supported fonts are "gothic", "plain", "serif" and "script" (and you can use "face" instead of "font").
One caveat, when positioning letters the program does NOT consider any descenders (like the tail of the 'y'), if you find the letter isn't quite where you want you can modify them with the adjustments "shown smaller than normal", "higher", "to the sinister" or whatever.
Numbers and Digits
Single or multiple digits can be drawn, also in a heavy gothic font. Use either of the charges number, digit. The number may be given either as digits or in words, in which case the words MUST be enclosed in quotation marks. For example the digit "5" gules, or the number "nineteen hundred and sixty four" sable. Numbers described in words up to around 100,000 will probably be recognised correctly.
If you wish to write things upon your shield, the following charges are available.
The roman 'X'where 'X' runs from 'A' to 'Z', but this time the letter is a proper text letter using a Serif font and is thus much more readable.
The word 'X' where 'X' is any string of letters. For multiple words, enclose them in double quotes, but note that the words do not "wrap" and so you end up with a long, thin charge. Words are drawn in a readable, serif font.
the word "ten" sable shows the charge as "ten"
the number "ten" sable will show the charge as "10"