Examine source code of Browser Utils

{
  "manifest_version": 2,
  "name": "Browser Utils",
  "version": "0.0.4",
  "description": "A extension that contains common function for browser",
  "browser_action": {
    "default_icon": "images/48x48.png",
    "default_title": "Browser Utils",
    "default_popup": "pages/popup/popup.html"
  },
  "icons": {
    "16": "images/16x16.png",
    "48": "images/48x48.png",
    "128": "images/128x128.png"
  },
  "commands": {
    "showFunctions": {
      "suggested_key": {
        "windows": "Alt+Q",
        "mac": "Command+Q"
      },
      "description": "Show functions"
    }
  },
  "permissions": [
    "tabs"
  ],
  "web_accessible_resources": [
    "pages/function-list/function-list.html"
  ],
  "background": {
    "page": "pages/background/background.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "lib/jquery.min.js",
        "content-script/content-script.js"
      ]
    }
  ]
}