Increase FONT_MAXNO from 0x2f to 0x40, to ensure the fonts[] array
[u/mdw/putty] / icons /
drwxr-xr-x   ..
-rw-r--r-- 3347 Makefile
-rwxr-xr-x 865 cicon.pl
-rwxr-xr-x 8673 icon.pl
-rwxr-xr-x 36987 mkicon.py