Examine source code of Pinyin Web

{
  "manifest_version": 2,
  "name": "Pinyin Web",
  "version": "0.2.104",
  "browser_specific_settings": {
    "id": "{2913c416-cda7-4b3d-aef0-f71995b8a05f}",
    "gecko_android": {},
    "gecko": {
      "id": "{2913c416-cda7-4b3d-aef0-f71995b8a05f}"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "ruby.css"
      ]
    }
  ],
  "browser_action": {
    "default_title": "Annotate",
    "default_popup": "config.html",
    "browser_style": true,
    "default_icon": {
      "32": "32.png"
    }
  },
  "permissions": [
    "<all_urls>",
    "clipboardRead"
  ],
  "icons": {
    "32": "32.png",
    "48": "48.png",
    "96": "96.png"
  }
}