In an old thread, you mention that “there is a rule you should not use encoded glyphs in OpenType features”. Can you tell me more about that? Or send a link?
I am having the same issue as a lot of people where there are people who cannot access all my glyphs because they aren’t using software that supports OpenType. I see that some type designers are using PUA glyphs as a work-around to that. If I do that, could I still write OT features, such as stylistic sets, with PUA coded glyphs? Or will that just mess up the font?
Continuing the discussion from Assigning a Private Use Area to existing glyph?: