Examine source code of Zoomit

{
  "icons": {
    "16": "icon16.393cdc9f.png",
    "48": "icon48.1c300d39.png",
    "128": "icon128.e752ac4b.png"
  },
  "manifest_version": 2,
  "browser_action": {
    "default_icon": {
      "16": "icon16.393cdc9f.png",
      "48": "icon48.1c300d39.png"
    },
    "default_popup": "popup.dd98efd0.html"
  },
  "version": "0.3.1",
  "name": "Zoomit",
  "description": "Enlarge media on the web with a simple hover of your mouse!",
  "author": "Nabil Tharwat <nabil.tharwat@outlook.com>",
  "homepage_url": "https://github.com/KL13NT/zoomit#readme",
  "background": {
    "scripts": [
      "background.26916e7f.js"
    ]
  },
  "options_ui": {
    "page": "options.1cc3fe34.html",
    "open_in_tab": true
  },
  "permissions": [
    "activeTab",
    "storage",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.1dfd35d4.js"
      ],
      "all_frames": true,
      "css": []
    }
  ],
  "web_accessible_resources": [
    "content.f62ac7cc.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c2d72d6b-9226-414a-965b-efeff37daf5a}"
    }
  }
}