Examine source code of Zoom Lens

{
  "manifest_version": 2,
  "name": "Zoom Lens - by DBZ Clasher",
  "version": "1.0",
  "description": "Zooms into images on webpages with a customizable magnifying lens.",
  "permissions": [
    "storage",
    "activeTab",
    "contextMenus"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/logo16.png",
      "48": "images/logo48.png",
      "128": "images/logo128.png"
    }
  },
  "icons": {
    "16": "images/logo16.png",
    "48": "images/logo48.png",
    "128": "images/logo128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{303dfd0a-e8d4-4b42-8775-a7f1b77d2772}"
    }
  }
}