F3 is an

outline font A computer font is implemented as a digital data file containing a set of graphically related glyphs. A computer font is designed and created using a font editor. A computer font specifically designed for the computer screen, and not for print ...

format created by Folio, Inc. Sun Microsystems acquired Folio in 1988, and included 57 F3 fonts and the F3 interpreter, ''TypeScaler'', in its

OpenWindows OpenWindows is a discontinued desktop environment for Sun Microsystems workstations which combined SunView, NeWS, and X Window System protocols. OpenWindows was included in later releases of the SunOS 4 and Solaris operating systems, until its r ...

desktop environment. The font format allowed for

hinting Font hinting (also known as instructing) is the use of mathematical instructions to adjust the display of an outline font so that it lines up with a rasterized grid. At low screen resolutions, hinting is critical for producing clear, legible tex ...

.comp.fonts FAQ: Sun Info
/ref> The extension of F3 Font Format outlines is ''.f3b''.

References

External links

* * Font formats Sun Microsystems software {{digital-typography-stub