clear font data
Clear different kinds of data in the current font.
RF3 RoboFont 3 code which still works in RoboFont 4. Not updated to the new RoboFont 4 APIs yet.
- guidelines
- delete all font-level guidelines
- groups
- clear all groups
- kerning
- clear all kerning pairs
- features
- clear all OpenType features
- stems
- clear all vertical and horizontal stems
- blue values
- clear all blue values
- layers
- delete all layers in the font
- template glyphs
- delete all template glyphs
- mark colors
- clear mark colors in all glyphs