$TypographySettings: (
  'sans serif': ('Helvetica Neue', Helvetica, 'Open Sans', Arial, 'Lucida Grande', 'Roboto', sans-serif),
  'monospace': (source-code-pro, Menlo, Consolas, monospace),
  'weight bold': 700,
  'weight normal': 400,
  'weight light': 200,
  'rhythm': 2rem
);

$GlobalSettings: map-merge($GlobalSettings, $TypographySettings);