Examine source code of JSON Formatter

{
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "css": [
        "css/content.css"
      ],
      "js": [
        "js/globals.js",
        "js/utils.js",
        "js/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2e195f4e-454e-49c8-9b36-7d7147d89515}"
    }
  },
  "name": "JSON Formatter",
  "short_name": "JSON Formatter",
  "web_accessible_resources": [
    "images/*",
    "js/*",
    "css/*",
    "*.html"
  ],
  "icons": {
    "16": "images/icons/icon_round_16.png",
    "32": "images/icons/icon_round_32.png",
    "48": "images/icons/icon_round_48.png",
    "64": "images/icons/icon_round_64.png",
    "72": "images/icons/icon_round_72.png",
    "128": "images/icons/icon_round_128.png",
    "256": "images/icons/icon_round_256.png",
    "384": "images/icons/icon_round_384.png",
    "512": "images/icons/icon_round_512.png",
    "1024": "images/icons/icon_round_1024.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "version": "1.2.1",
  "manifest_version": 2,
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://*/*",
    "<all_urls>",
    "storage",
    "unlimitedStorage"
  ],
  "browser_action": {
    "default_popup": "options.html",
    "default_title": "JSON Formatter - Edit Preferences",
    "default_area": "navbar",
    "default_icon": {
      "16": "images/icons/icon_round_16.png",
      "32": "images/icons/icon_round_32.png",
      "48": "images/icons/icon_round_48.png",
      "64": "images/icons/icon_round_64.png",
      "72": "images/icons/icon_round_72.png",
      "128": "images/icons/icon_round_128.png",
      "256": "images/icons/icon_round_256.png",
      "384": "images/icons/icon_round_384.png",
      "512": "images/icons/icon_round_512.png",
      "1024": "images/icons/icon_round_1024.png"
    }
  },
  "description": "Formats json and auto highlighting."
}