Examine source code of Smart Quotes

{
  "manifest_version": 2,
  "version": "1.0.2",
  "name": "Smart Quotes",
  "applications": {
    "gecko": {
      "id": "@gesof-smart-quotes",
      "strict_min_version": "50.0"
    }
  },
  "description": "Self-motivational quotes to improve your day seamlessly. “Nine-tenths of wisdom is being wise in time.” - Theodore Roosevelt",
  "icons": {
    "48": "assets/images/icon-64.png",
    "64": "assets/images/icon-64.png",
    "128": "assets/images/icon-128.png"
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "libs/jquery.js",
        "content_scripts/all.js"
      ],
      "css": [
        "content_scripts/all.css"
      ]
    }
  ],
  "background": {
    "persistent": true,
    "scripts": [
      "index.js"
    ]
  },
  "web_accessible_resources": [
    "assets/images/loader.gif"
  ],
  "browser_action": {
    "default_icon": "assets/images/icon-64-disabled.png",
    "default_title": "Smart Quotes",
    "default_popup": "panels/menu.html"
  },
  "options_ui": {
    "page": "panels/options.html",
    "browser_style": true
  }
}