The
spec says:
A font developer can assign any glyph to any class, each identified with an integer called a class value. A Class Definition table (ClassDef) groups glyph indices by class, beginning with Class 1, then Class 2, and so on. All glyphs not assigned to a class fall into Class 0.
Does "all glyphs not assigned to a class" literally mean
every other glyph in the font or
every other glyph in the coverage table or something else?
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