2026-08-18 — Appearance font lock :: Platforms

Appearance spec points at Scriptbook intent playbooks for Cascadia Mono and JetBrains Mono (scriptbook/examples/fonts/), catalog ids in equivalence-rules-cli.
Further monos (Fira Code, Iosevka, Monaspace, Nerd Fonts JetBrains Mono) have playbooks but are not Appearance radios yet.
Preview: specified as an editable code field wearing the face; not implemented in settings_dialog.d this pass.
Next hook: Install when scriptbook is on PATH — do not reimplement exec in the dialog.