Examine source code of SpareRoom Addons

{
  "manifest_version": 3,
  "name": "SpareRoom Addons",
  "version": "1.0.0",
  "description": "Adds missing features to SpareRoom.co.uk - price conversion, and more",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://www.spareroom.co.uk/*",
    "https://spareroom.co.uk/*",
    "https://www.spareroom.com/*",
    "https://spareroom.com/*"
  ],
  "action": {
    "default_popup": "src/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.spareroom.co.uk/*",
        "https://spareroom.co.uk/*",
        "https://www.spareroom.com/*",
        "https://spareroom.com/*"
      ],
      "js": [
        "src/content.js"
      ],
      "css": [
        "src/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "spareroom-addons@example.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}