Quick Look FontForge’s interface
Get XQuart z
This version of X11 is no longer included with macOS. It’s free and you can obtain it from xquartz.org.
Glyphs
The character set for your font is listed here. Double-click any glyph to create it from scratch or edit what’s there.
The editing window
Editing glyphs takes place in another window, which has its own menu bar and tool palette.
Editing paths
Points with handles work much like Béziers in other apps, but some tools will be less familiar.