Every icon on this site is Iconify, through Nuxt Icon. Five collections are installed
(Tabler, Lucide, Phosphor, Heroicons, Remix) and a visitor can pick which one the UI
renders in, so app code never names a collection: it asks for a semantic name and
resolveIcon maps it. Brand marks come from the logos set, which is why every entry
in this registry can carry its own icon.