> For the complete documentation index, see [llms.txt](https://docs.mapbox.com/mapbox-gl-js/ja/llms.txt)
# Configure the Basemap during Map Initialization
> **Note (new): Upgrade to Mapbox GL JS v3**
>
> This feature is available in Mapbox GL JS v3. Learn how to migrate in our [migrate to v3 guide](https://docs.mapbox.com/mapbox-gl-js/ja/guides/migrate/)
The [Mapbox Standard Style](https://docs.mapbox.com/map-styles/guides/standard-styles/) exposes configuration properties that control the look and feel of the basemap, including lighting (such as `dawn`, `day`, `dusk`, `night`) and the visibility of labels such as POIs, transit, places, and roads. This example shows how to pass these options via the `config` property of the `style` object when instantiating the `Map`, so the map renders with the desired appearance from the first frame — no extra API calls needed.
> **Note: Explore all Standard Style configuration properties**
>
> Explore all configuration options and see how they affect the map's appearance in the [Standard Style Playground](https://docs.mapbox.com/playground/standard-style/).
To learn more about the full set of available options, see the [Mapbox Standard Style documentation](https://docs.mapbox.com/map-styles/guides/standard-styles/).
Configuration properties can also be updated after the map has loaded. See the [Configure the basemap at Runtime](https://docs.mapbox.com/mapbox-gl-js/ja/example/set-config-property/) example to learn how to use [`setConfigProperty`](https://docs.mapbox.com/mapbox-gl-js/ja/api/map/#map#setconfigproperty) to change these values dynamically in response to user interaction.
> Example code:
**JavaScript**
```html
Configure the Basemap during Map Initialization
```