uni02C9, “firsttonechinese”

Why is the name for uni02C9 firsttonechinese? This is the spacing macron character so is firsttonechinese an error?

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The unicode name is MODIFIER LETTER MACRON but the Adobe Glyph Library has it as firsttonechinese.

Actually, firsttonechinese is not Adobe’s recommended name for U+02C9 – note that 02C9 is not in Adobe Glyph List For New Fonts. Rather, uni02C9 is the recommended name.

If a font uses firsttonechinese for a glyph, some Adobe sofware will, if needed and no other info is available, assume U+02C9 was the underlying character (see the Adobe Glyph List).

The aglfn defines names for final fonts. And the glyph will get an uni-name on export. We are speaking about design time names.

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