Examine source code of Web Develope

{
  "background": {
    "page": "/background/background.html"
  },
  "content_scripts": [
    {
      "js": [
        "/content/content.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "default_locale": "en_US",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "http://chrispederick.com/work/web-developer/",
  "icons": {
    "16": "/common/images/logos/16.png",
    "24": "/common/images/logos/24.png",
    "32": "/common/images/logos/32.png",
    "48": "/common/images/logos/48.png",
    "64": "/common/images/logos/64.png",
    "128": "/common/images/logos/128.png",
    "256": "/common/images/logos/256.png",
    "512": "/common/images/logos/512.png"
  },
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "options_ui": {
    "page": "/options/options.html"
  },
  "version": "2.0.5",
  "browser_action": {
    "browser_style": false,
    "default_icon": {
      "16": "/common/images/logos/16.png",
      "24": "/common/images/logos/24.png",
      "32": "/common/images/logos/32.png",
      "48": "/common/images/logos/48.png",
      "64": "/common/images/logos/64.png",
      "128": "/common/images/logos/128.png",
      "256": "/common/images/logos/256.png",
      "512": "/common/images/logos/512.png"
    },
    "default_popup": "/overlay/overlay.html",
    "default_title": "__MSG_extensionName__"
  },
  "permissions": [
    "clipboardWrite",
    "cookies",
    "history",
    "storage",
    "tabs",
    "<all_urls>"
  ],
  "web_accessible_resources": [
    "*"
  ]
}