OS/2.xAverageWidth IS used when rendering monospaced fonts, at least by Windows GDI. GDI will apply this value to all "simple" glyphs, while CJK glyphs (like 中) will use this value times … (View Post)
TT doesn't have any concept like blue zone. The only “zone” existed are Twiligth vs Non-twilight, which represents two “namespaces” of points. TT hints are programs -- you can literally do anything … (View Post)
Supporting boolean composition requires a serious specification update, and it is hard to maintain full compatibility with existing API. But — you can go color fonts for now. (View Post)