Examine source code of Shu Had?

{
  "manifest_version": 2,
  "name": "Shu Had?",
  "version": "1.0.1",
  "description": "Search for Arabic words across a range of dictionaries from a tooltip or from the context menu",
  "icons": {
    "48": "icons/icon-48.png"
  },
  "permissions": [
    "contextMenus",
    "tabs",
    "notifications"
  ],
  "background": {
    "scripts": [
      "context-menu.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.livingarabic.com/*"
      ],
      "js": [
        "lughatuna-highlighter.js"
      ]
    },
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{be6317a2-5c7b-4d78-86b3-5f1b0943943d}"
    }
  }
}