Type Alias HostTheme

HostTheme: "light" | "dark"

The host UI theme, mirrored from the immediately.run host window into the sandbox. Your app can read this to render in step with the host chrome (light / dark).

This is the baseline theme:read capability — every app may read it. Changing the host theme is a separate, elevated action (theme:set), available only to the theme-toggle system app.