let styles: [UIFont.TextStyle] = [
    // iOS 17
    .extraLargeTitle, .extraLargeTitle2,
    // iOS 11
    .largeTitle,
    // iOS 9
    .title1, .title2, .title3, .callout,
    // iOS 7
    .headline, .subheadline, .body, .footnote, .caption1, .caption2,
]

for style in styles {
    let font = UIFont.preferredFont(forTextStyle: style)
    print("\(style): \(font.fontName) @ \(font.pointSize)")
}