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