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font-sans, font-serif and font-mono already map to SwiftUI's font designs; font-rounded adds the fourth, .rounded (SF Pro Rounded), as fontFamily 3. Renderers without a rounded system face keep the default sans, as they do for the other designs they cannot draw.
simonhamp
approved these changes
Oct 4, 2026
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SwiftUI has four system font designs: default, serif, monospaced and rounded (SF Pro Rounded, the face of the Apple Watch and Fitness numbers). NativePHP already maps the first three to Tailwind classes (
font-sans,font-serif,font-mono), but there is no way to ask for the rounded one:font-roundedis dropped by the parser without a word.This PR adds
font-roundednext to the other three, sent asfontFamily3. It is a one-line parser change plus tests; drawing it is the renderer's job, in NativePHP/mobile-ui#121.Why it helps: rounded numbers are the friendly look apps use for scores, counters, timers and stats, and it is a system font, so there is nothing to bundle and it follows Dynamic Type. Platforms without a rounded system font (Android) keep the default sans, as they already do for any design they can't draw. Nothing changes for apps that don't use the class.
Before / after, with the mobile-ui renderer change (iPhone 17 Pro simulator, iOS 26.5): on main,
font-roundedrenders likefont-sans; after, it is SF Pro Rounded: