The first font named Fixedsys in windows\fonts folder fits 10x20, solutions:
-
fixedsysTTF
8
16
-
data/font/fixedsys.ttf
8
16
-
FixedSys
10
20
Don’t forget you can add another line of font size if you feel the font doesn’t fill the grids correctly.
For juggled fonts, it probably needs anti-aliasing, for example:
Your font name
8
16
16
blended