\defaultfontfeatures[Computer Modern Graded G57 Sans]{
  Extension=.otf,
  UprightFont=ComputerModernGradedG57Sans10Regular,
  BoldFont=ComputerModernGradedG57Sans10Bold,
  ItalicFont=ComputerModernGradedG57Sans10Slanted,
  SlantedFont=ComputerModernGradedG57Sans10Slanted,
  UprightFeatures = {
    SizeFeatures = {
      {Size={-8.5}, Font=ComputerModernGradedG57Sans8Regular},
      {Size={8.5-9.5}, Font=ComputerModernGradedG57Sans9Regular},
      {Size={9.5-11.5}, Font=ComputerModernGradedG57Sans10Regular},
      {Size={11.5-15.8}, Font=ComputerModernGradedG57Sans12Regular},
      {Size={15.8-}, Font=ComputerModernGradedG57Sans17Regular},
    }
  },
  ItalicFeatures = {
    SizeFeatures = {
      {Size={-8.5}, Font=ComputerModernGradedG57Sans8Slanted},
      {Size={8.5-9.5}, Font=ComputerModernGradedG57Sans9Slanted},
      {Size={9.5-11.5}, Font=ComputerModernGradedG57Sans10Slanted},
      {Size={11.5-15.8}, Font=ComputerModernGradedG57Sans12Slanted},
      {Size={15.8-}, Font=ComputerModernGradedG57Sans17Slanted},
    }
  },
  SlantedFeatures = {
    SizeFeatures = {
      {Size={-8.5}, Font=ComputerModernGradedG57Sans8Slanted},
      {Size={8.5-9.5}, Font=ComputerModernGradedG57Sans9Slanted},
      {Size={9.5-11.5}, Font=ComputerModernGradedG57Sans10Slanted},
      {Size={11.5-15.8}, Font=ComputerModernGradedG57Sans12Slanted},
      {Size={15.8-}, Font=ComputerModernGradedG57Sans17Slanted},
    }
  },
}