The font design variant. See FontDesign for available values (e.g.,
"default", "rounded", "monospaced", "serif").Sets the font design variant for text content.
.fontDesign(design: FontDesign)
"default", "rounded", "monospaced", "serif").Text("Friendly text")
.fontDesign("rounded")
Text("let x = 42")
.fontDesign("monospaced")
Text("Elegant heading")
.font("title")
.fontDesign("serif")