shadowPanel

The shadowPanel module controls the shadow overlay panel -- a fullscreen transparent layer used for atmospheric effects or focus dimming.

import { shadowPanel } from "@hmcs/sdk";

// Dim the background
await shadowPanel.setAlpha(0.7);

// Read the current alpha
const current = await shadowPanel.alpha();

// Remove the overlay
await shadowPanel.setAlpha(0);

alpha ranges from 0 (fully transparent / invisible) to 1 (fully opaque).