### Default ### Persist locally Set `persist` to `true` to persist the theme locally using the [Window.localStorage API](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage). ### Custom theme Define keys and values in the `tokens` prop that override default Carbon theme tokens. ### Theme toggle Set `render` to `"toggle"` to render a toggle switch to control the theme. ### Theme toggle (custom) Customize the toggle using the `toggle` prop. ### Theme select Set `render` to `"select"` to render a select dropdown to control the theme. ### Theme select (custom) Customize the select using the `select` prop.