I'm not exactly sure how it was accomplished, but the Victor/Sirus 9000 allowed you to change the screen font, using one of several fonts that came on disk, or even fonts of your own design. To do this required use of a software package called "Graphics Tool Kit", which consisted of several sub-programs including:
Grafix - the graphics extensions, line, circle, etc
Busigraf - business graphics, pie charts, etc
Chargraf - character graphics
Efont - this is the font editor used to create new fonts
Keygen - soft-key redefinition
Modcon - console modification utility used to set and save keyboard tables and character sets
GW-BASIC - gee whiz, need I say more?
From the manual:
RTFM said:
With the Grafix Package, you can use up to ten different character sets of 128 characters each, and up to eight full screens.
and:
Grafix can be used with any language that is capable of executing a print statement.
The fonts that came with the package were pretty nice, but I never understood why anyone would want to change from the V9K's built-in font, which is the prettiest font I've ever seen on a computer screen (although it is kinda fun to play around with designing your own characters).
--T