Examine source code of Spoiler Foiler

{
  "manifest_version": 2,
  "version": "0.1.0",
  "name": "Spoiler Foiler",
  "description": "Block spoilers for any TV show while browsing the web.",
  "browser_action": {
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "scripts/polyfill.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "scripts/jquery-3.6.0.min.js",
        "scripts/polyfill.js",
        "scripts/spoiler_blocker.js"
      ]
    }
  ],
  "icons": {
    "16": "res/img/icon16.png",
    "48": "res/img/icon48.png",
    "128": "res/img/icon128.png"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true,
    "open_in_tab": true
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{306dfdf0-36cf-4279-8b50-53614806f9aa}"
    }
  }
}