Font Feature Constants These constants provide keys to font feature dictionary values. TopicsConstantskCTFontFeatureTypeIdentifierKeykCTFontFeatureTypeNameKeykCTFontFeatureTypeExclusiveKeykCTFontFeatureTypeSelectorsKeykCTFontFeatureSelectorIdentifierKeykCTFontFeatureSelectorNameKeykCTFontFeatureSelectorDefaultKeykCTFontFeatureSelectorSettingKeykCTFontFeatureSampleTextKeykCTFontFeatureTooltipTextKey See AlsoGlobal VariablesName Specifier ConstantsFont Variation Axis Dictionary Keys