appkit:font

(appkit:font size &key bold)

Answers the system NSFont at that point size, bold when :bold is true. appkit:label builds its own font from its :size and :bold, so this is for the views the widget layer does not wrap -- anything with a setFont:. Part of the appkit package, a Cocoa widget layer written in rontolisp over objc and loaded on first use: macOS (java -jar, the rontolisp binary, or a compiled .class / .jar; never a .wasm), with a display. See the macOS GUI guide.

CL-USER> (defvar *heading* (appkit:font 19 :bold t))
CL-USER> (objc:send *text-view* "setFont:" *heading*)