Examine source code of News Ticker Filter

{
  "manifest_version": 2,
  "name": "News Ticker Filter",
  "version": "1.0",
  "description": "Displays a news ticker at the bottom of the screen, filtered by keywords or topics of interest.",
  "permissions": [
    "activeTab",
    "storage",
    "https://newsapi.org/"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8484ada8-c71d-43a7-bc83-2ca1e0822711}"
    }
  }
}