@vaadin/vaadin-lumo-styles/src/components/dashboard.css

Lumo is a design system foundation for modern web applications, used by Vaadin components

/**
 * @license
 * Copyright (c) 2017 - 2026 Vaadin Ltd.
 * This program is available under Apache License Version 2.0, available at https://vaadin.com/license/
 */
@media lumo_components_dashboard {
  :host {
    --_widget-opacity: 1;
  }

  :host([item-selected]) {
    --_widget-opacity: 0.7;
  }
}