.sfd

Spline Font Database

Not yet supported

Format facts

MIME type: application/x-font-sfd
Apple UTI: custom
Stock Quick Look: shown as plain text
Planned approach (census): syntax-highlight
Icon hint: generic-icon
Prevalence: niche

Renderer note (from the census)

pure Go trivial, parse FontForge text format

Gotchas: FontForge source