Color Font Handling #25
Description
Currently, Laidout can only vaguely handle color fonts, via stacked single color fonts. This cannot stand!
To properly support color fonts, Laidout needs (at least):
- For stacked single color fonts, need easy way to remember configurations
- Opentype svg fonts
- Opentype colr/cpal (investigate whether freetype has enough to deal with this these days)
- Whatever the font format, need easy way to configure/override font colors
- Finish implementing font utilities in laidout/coop/fonts
- Once all the above implemented, need adequate feature documentation