Examine source code of GGFast! Claim Your Keys

{
  "manifest_version": 2,
  "name": "GGFast! Claim your Game Keys",
  "description": "Claim your game keys quickly with this tool!",
  "version": "1.0.2",
  "homepage_url": "https://github.com/arbaro/nclz",
  "icons": {
    "16": "img/16.png",
    "32": "img/32.png",
    "48": "img/48.png",
    "64": "img/64.png",
    "128": "img/128.png",
    "256": "img/256.png"
  },
  "permissions": [
    "notifications",
    "tabs",
    "idle",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "storage",
    "contextMenus",
    "clipboardWrite",
    "cookies",
    "downloads",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": "img/48.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "bck.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "jquery.js",
        "ggdata.js",
        "main.js"
      ],
      "run_at": "document_end"
    }
  ]
}