Are there still font name limitations regarding the lengths of the names? I have a new font with a rather long family name and long style names like “Extralight Italic”. I vaguely remember that the postscript name (ID6) shouldn’t exceed 29 characters, full name (ID4) not more then 31 characters. How does Glyphs handle this?
I remember one solution when ID4 is longer then 31 characters: Add ID18 (with a max of 31 characters). When I look into the fonts Glyphs generated, I see that it’s doing just this, but in a very inconsistent way. It changes for example “Extralight Italic” in ID18 to “Exlight Italic”, but “Ultralight Italic” to “Ultralight It”.
Is it wise to add a custom parameter in this cases, or even for all styles?