I have uploaded a new install
http://www.firewing.info/pmwiki.php?n=Firewing.Downloadwhich increases the font point size from 32 to 64. I have tested the font rendering library with the new font size and it works well for Verdana (at a maximum dimension of 102 x 86 pixels). However, I have not tested with any other fonts. I suspect the rendering library would need some changes to support larger font sizes...