--- /dev/null
+aalt Access All Alternates
+cpct <unknown feature>
+dlig Discretionary Ligatures
+fwid Full Widths
+halt Alternate Half Widths
+hwid Half Widths
+nalt Alternate Annotation Forms
+pwid Proportional Widths
+trad Traditional Forms
+vert Vertical Writing
+vhal Alternate Vertical Half Metrics
+vrt2 Vertical Alternates and Rotation
--- /dev/null
+aalt Access All Alternates
+afrc Alternative Fractions
+ccmp Glyph Composition/Decomposition
+dlig Discretionary Ligatures
+dnom Denominators
+expt Expert Forms
+frac Fractions
+fwid Full Widths
+halt Alternate Half Widths
+hkna Horizontal Kana Alternates
+hojo <unknown feature>
+hwid Half Widths
+ital Italics
+jp78 JIS78 Forms
+jp83 JIS83 Forms
+jp90 JIS90 Forms
+kern Kerning
+liga Standard Ligatures
+nalt Alternate Annotation Forms
+nlck NLC Kanji Forms
+numr Numerators
+palt Proportional Alternate Widths
+pkna <unknown feature>
+pwid Proportional Widths
+qwid Quarter Widths
+ruby Ruby Notation Forms
+sinf Scientific Inferiors
+subs Subscript
+sups Superscript
+trad Traditional Forms
+twid Third Widths
+vert Vertical Writing
+vhal Alternate Vertical Half Metrics
+vkna Vertical Kana Alternates
+vkrn Vertical Kerning
+vpal Proportional Alternate Vertical Metrics
+vrt2 Vertical Alternates and Rotation
+zero Slashed Zero