Custom Names for Character Variants

[FlorianPircher]

Setting FeatUILabelNameID in code works:

Feature request: The ability to export stylistic set 30 to 99 with feature names

Glyphs does support them, but there is no UI. Add them as specified by the AFDKO spec: cvParameters { FeatUILabelNameID { name 3 1 0x0409 "Alternative small a"; # English US name 1 0 0 "Alternative small a"; # Mac English }; FeatUITooltipTextNameID { name 3 1 0x0409 "The small a has many forms to offer."; # English US name 1 0 0 "The small a has many forms to offer."; # Mac English }; SampleTextNameID { name 3 1 0x0409 "alpha all…