Examine source code of News Archive

{
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "{16ba2b24-85c3-4350-99d0-cfae54d811eb}"
    }
  },
  "name": "News Archive",
  "description": "Look to see if older versions of news articles are available on news-archive.uk",
  "version": "4.1.0",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://*.news-archive.uk/*",
    "https://t7pc82n20i.execute-api.eu-west-2.amazonaws.com/*",
    "https://news.google.com/*",
    "http://fonts.googleapis.com/",
    "https://fonts.googleapis.com/"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.bbc.co.uk/*",
        "https://*.bbc.com/*"
      ],
      "js": [
        "content-scripts/js/content-bbc.js"
      ],
      "css": [
        "css/common.css",
        "content-scripts/css/main.css",
        "fonts/bootstrap-icons.css"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://*.theguardian.com/*"
      ],
      "js": [
        "content-scripts/js/content-generic.js"
      ],
      "css": [
        "css/common.css",
        "content-scripts/css/main.css",
        "fonts/bootstrap-icons.css"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://*.aljazeera.com/*"
      ],
      "js": [
        "content-scripts/js/content-generic.js"
      ],
      "css": [
        "css/common.css",
        "content-scripts/css/main.css",
        "fonts/bootstrap-icons.css"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://*.nytimes.com/*"
      ],
      "js": [
        "content-scripts/js/content-generic.js"
      ],
      "css": [
        "css/common.css",
        "content-scripts/css/main.css",
        "fonts/bootstrap-icons.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "fonts/*",
        "pages/*",
        "images/*"
      ],
      "matches": [
        "https://*.bbc.co.uk/*",
        "https://*.bbc.com/*",
        "https://*.theguardian.com/*",
        "https://*.aljazeera.com/*",
        "https://*.nytimes.com/*"
      ]
    }
  ],
  "icons": {
    "64": "images/globe-64.png",
    "128": "images/globe-128.png",
    "256": "images/globe-256.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "64": "images/globe-64.png",
      "128": "images/globe-128.png",
      "256": "images/globe-256.png"
    }
  }
}