I have characters alternative suffix as a .alt and .ss01. I am designing one font where I have only one alternative of lowercase a and 3 alternatives of lowercase g.
1. Which suffix or extension should I use for which alternative?
2. What is difference between .alt and .ss01 extension?
3. I am just guessing .alt is intended to use for only one alternative and .ss01 is intended to use for multiple alternative. Am I right?
Please provide additional resources or reading material.
Thank you for your time and consideration.
Can I use .ss01 for single alternative if fontlab does not support .alt or .cv01?
FontLab supports .ss01, .salt .cv01 and many others.
I also really recommend giving alternate glyphs a meaningful name. I'm sure you can remember now how g.alt1 differs from g.alt2, but when you come back to your font in a few years time, you'll be much happier if you had named them g.wide and g.narrow instead.