Examine source code of Ultimate Spotify Search

{
  "name": "Ultimate Spotify Search",
  "version": "5.1",
  "manifest_version": 3,
  "description": "Simplifies search on Spotify with launchers on popular sites and search from right-click",
  "permissions": [
    "contextMenus",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://*.youtube.com/*",
    "https://*.soundcloud.com/*",
    "https://*.bandcamp.com/*"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "service_worker": "js/background.js",
    "scripts": [
      "js/background.js"
    ]
  },
  "options_ui": {
    "page": "settings/settings.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "spotifyonyoutube@odysseasnotepad.wordpress.com"
    }
  }
}