Examine source code of Redux DevTools TM

{
  "manifest_version": 2,
  "name": "Redux DevTools",
  "version": "1.3",
  "description": "Redux state monitor with action logging and basic time-travel debugging.",
  "permissions": [
    "tabs",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "injected.js"
  ],
  "devtools_page": "devtools.html",
  "icons": {
    "32": "icons/logo_32.png",
    "64": "icons/logo_64.png",
    "128": "icons/logo_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3bf78277-277e-4b1a-83b7-768baf63d3b5}"
    }
  }
}