_typography.scss

$font-families: map-get($theme, sassFontFamilies);
$font-sizes: map-get($theme, fontSizes);

@function font-family($name) {
  @return map-get($font-families, $name);
}

@mixin font-family($name) {
  font-family: font-family($name);
}

@function font-size($name) {
  @return map-get($font-sizes, $name);
}