Typography

See https://developer.apple.com/ios/human-interface-guidelines/visual-design/typography/

Style	Weight	Point size	Leading	Tracking
Large Title	Regular	34pt	41pt	11pt
Title 1	Regular	28pt	34pt	13pt
Title 2	Regular	22pt	28pt	16pt
Title 3	Regular	20pt	25pt	19pt
Headline	Semi-Bold	17pt	22pt	-24pt
Body	Regular	17pt	22pt	-24pt
Callout	Regular	16pt	21pt	-20pt
Subhead	Regular	15pt	20pt	-16pt
Footnote	Regular	13pt	18pt	-6pt
Caption 1	Regular	12pt	16pt	0pt
Caption 2	Regular	11pt	13pt	6pt