CSS Spy

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "CSS Spy",
  "short_name": "css-spy",
  "description": "Showing CSS attribute on element hover",
  "version": "1.5",
  "author": "Rudi Wahyudi",
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "offline_enabled": false,
  "browser_action": {
    "default_icon": "images/icon48.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/jquery-2.2.3.min.js",
        "js/jquery.dom-outline-1.0.js",
        "js/selectorator.min.js",
        "js/css-spy.js",
        "js/sweetalert.min.js"
      ],
      "css": [
        "css/css-spy.css",
        "css/sweetalert.css"
      ]
    }
  ],
  "permissions": [
    "storage",
    "tabs"
  ]
}