How to change layer opacity when use 'mapbox://styles/mapbox/standard'

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I use the standard style: 'mapbox://styles/mapbox/standard', and this is my config:
```
const map = new mapboxgl.Map({
container: 'map',
// Choose from Mapbox's core styles, or make your own style with Mapbox Studio
style: 'mapbox://styles/mapbox/standard',
center: this.center,
zoom: this.zoom,
config: {
basemap: {
lightPreset: 'night'
}
},
antialias: true // create the gl context with MSAA antialiasing, so custom layers are antialiased
});
```

I wang to show pipeline under the background, how can I change the opacity of the background, roads, buildings?

Start with the Map constructor configuration shown in the issue and investigate how the standard style exposes background, road, and building layers. Verify whether opacity can be changed for those layers while keeping the pipeline visible, and document the supported approach or limitation. No specific repository files or tests are named in the issue.

Written by the indexing model from the issue text.