pub fn set_light_dark(light: impl Into<String>, dark: impl Into<String>)Expand description
Designates which two registered modes form the light/dark pair. A thin, optional convention over the open
mode registry: it does not replace named modes (a third mode like "pastel" stays valid) — it only tells
is_dark/set_dark/toggle_dark which ids to flip between. Both ids should also be registered via
register_mode. Does not itself change the active mode.