macOS keeps faces for its own interface under family names that start with
"." (".SF NS", ".LastResort", ".Aqua Kana"…); Mac apps don't list them. Since
the font menus list every installed family (#36), they showed 74 of them on a
stock macOS, at the top of every list.
- FontDb::menu_family_list: family_list without names that start with ".",
cached like it. Only a leading dot hides a family.
- Type › Font, the family dropdowns (Character, Properties), text.fontList and
Refresh Font List's count use it.
- Lookups by name still see every family: documents and fallbacks that name
a hidden family still find it (face, has_family, find_family, families,
text.fontList {family}, Fonts in Document's missing check).
- Test: tests_sysfonts::font_lists_leave_out_hidden_system_families_which_still_resolve
(a temporary font folder); the engine and UI font-list tests compare with
the listed families.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
fcc9414480