Examine source code of Netflix Hotkeys (Beta)

{
  "manifest_version": 2,
  "name": "Netflix Hotkeys (Beta)",
  "version": "0.9.3",
  "description": "Adds keyboard shortcuts to netflix similar to YouTube.",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "web_accessible_resources": [
    "html/ui.html",
    "js/init.js",
    "js/hotkeys.js",
    "js/ui.js"
  ],
  "content_scripts": [
    {
      "js": [
        "js/inject.js"
      ],
      "css": [
        "css/ui.css"
      ],
      "matches": [
        "*://*.netflix.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_popup": "html/popup.html"
  }
}