Examine source code of DashDial

{
  "manifest_version": 3,
  "name": "DashDial",
  "version": "4.0.0",
  "description": "Material 3 new tab. Bookmark-backed tiles & folders, custom icons, light/dark, 6 accents, drag-and-drop.",
  "permissions": [
    "storage",
    "topSites",
    "unlimitedStorage",
    "contextMenus",
    "scripting",
    "alarms",
    "downloads",
    "bookmarks",
    "search",
    "activeTab"
  ],
  "optional_host_permissions": [
    "https://*/*",
    "http://*/*"
  ],
  "background": {
    "scripts": [
      "js/browser-compat.js",
      "js/background.js"
    ]
  },
  "action": {
    "default_title": "DashDial — save page screenshot"
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "icons": {
    "16": "assets/icons/icon16.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "dashdial@softime.pl",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}