\defaultfontfeatures[Computer Modern Graded G57 Serif]{
  Extension=.otf,
  UprightFont=ComputerModernGradedG57Serif10Regular,
  BoldFont=ComputerModernGradedG57Serif10Bold,
  ItalicFont=ComputerModernGradedG57Serif10Italic,
  BoldItalicFont=ComputerModernGradedG57Serif10BoldItalic,
  SlantedFont=ComputerModernGradedG57Serif10Slanted,
  BoldSlantedFont=ComputerModernGradedG57Serif10BoldSlanted,
  SmallCapsFont=ComputerModernGradedG57Serif10SmallCaps,
  UprightFeatures = {
    SizeFeatures = {
      {Size={-5.5}, Font=ComputerModernGradedG57Serif5Regular},
      {Size={5.5-6.5}, Font=ComputerModernGradedG57Serif6Regular},
      {Size={6.5-7.5}, Font=ComputerModernGradedG57Serif7Regular},
      {Size={7.5-8.5}, Font=ComputerModernGradedG57Serif8Regular},
      {Size={8.5-9.5}, Font=ComputerModernGradedG57Serif9Regular},
      {Size={9.5-11.5}, Font=ComputerModernGradedG57Serif10Regular},
      {Size={11.5-15.8}, Font=ComputerModernGradedG57Serif12Regular},
      {Size={15.8-}, Font=ComputerModernGradedG57Serif17Regular},
    }
  },
  BoldFeatures = {
    SizeFeatures = {
      {Size={-5.5}, Font=ComputerModernGradedG57Serif5Bold},
      {Size={5.5-6.5}, Font=ComputerModernGradedG57Serif6Bold},
      {Size={6.5-7.5}, Font=ComputerModernGradedG57Serif7Bold},
      {Size={7.5-8.5}, Font=ComputerModernGradedG57Serif8Bold},
      {Size={8.5-9.5}, Font=ComputerModernGradedG57Serif9Bold},
      {Size={9.5-11.5}, Font=ComputerModernGradedG57Serif10Bold},
      {Size={11.5-}, Font=ComputerModernGradedG57Serif12Bold},
    }
  },
  ItalicFeatures = {
    SizeFeatures = {
      {Size={-7.5}, Font=ComputerModernGradedG57Serif7Italic},
      {Size={7.5-8.5}, Font=ComputerModernGradedG57Serif8Italic},
      {Size={8.5-9.5}, Font=ComputerModernGradedG57Serif9Italic},
      {Size={9.5-11.5}, Font=ComputerModernGradedG57Serif10Italic},
      {Size={11.5-}, Font=ComputerModernGradedG57Serif12Italic},
    }
  },
  SlantedFeatures = {
    SizeFeatures = {
      {Size={-8.5}, Font=ComputerModernGradedG57Serif8Slanted},
      {Size={8.5-9.5}, Font=ComputerModernGradedG57Serif9Slanted},
      {Size={9.5-11.5}, Font=ComputerModernGradedG57Serif10Slanted},
      {Size={11.5-}, Font=ComputerModernGradedG57Serif12Slanted},
    }
  },
}