pub fn default_theme() -> Option<Theme>Expand description
Read the seeded default, if any (None when set_default_theme has
never been called). Non-destructive — a shell may need it again when
reverting an app override via clear_app_theme, to re-seed the base (see
the module docs’ Non-destructive read section); unlike
crate::font_registry::FontRegistryWatcher::poll, repeated calls with
no intervening set_default_theme all return the same value rather than
draining the slot.