its GUI reminds me of GIMP
Cubic layers (C) use third-order Bezier splines, like PS fonts. Quadratic ones (Q) use second-degree splines, that are harder to edit, but mathematically easier and simpler to control, so they are used in TTF fonts.
The user interface of this font editor might seem daunting to beginners at first, so to get you on your way, read over the "steps to creating a font" tutorial on the FontForge website.
Here is the source I pulled that program from:
I am also wondering about rage faces. Not for here....but a set of rage face emotes would be tres cool for other sites.