What the built-in font styles correspond to on iOS and macOS:
| Style | iOS Default | macOS | macOS Emphasized |
|---|---|---|---|
| .largeTitle | Regular 34 | Regular 26 | Bold |
| .title | Regular 28 | Regular 22 | Bold |
| .title2 | Regular 22 | Regular 17 | Bold |
| .title3 | Regular 20 | Regular 15 | Semibold |
| .headline | Semibold 17 | Bold 13 | Heavy |
| .body | Regular 17 | Regular 13 | Semibold |