[
          {
            title: 'Math Font',
            comment: [
              `Use the math font in math mode`,
              'Italic alphabetic letters, upright digits, operators',
              'Glyphs aligned on the math axis (halfway between the baseline and the x-height)',
              'Extra spacing around "f", "g", "v", "w", "y"',
              'No ligature for, e.g. "fi"',
              'Italic correction after "f"',
              '"\\mathit" is using main font, italic: no extra spacvin',
    