comark/icon/unknown-set

The part before the colon names an icon set. When Iconify has no set by that name, and collections doesn't pass one, the icon is left out of the page. A typo in the set's name is the usual cause. Icônes lists every set.

The same rule covers the icon of a :::tabs-item, a code group's block, a ::card, or a comark-code action.

The pond opens at noon :icon{name="lucid:bird"}

The pond opens at noon :icon{name="lucide:bird"}