Examine source code of Web Developer Sidekick

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "version": "0.0.32",
  "description": "__MSG_extDescription__",
  "default_locale": "en",
  "icons": {
    "48": "dev-sticker-icon.png"
  },
  "browser_action": {
    "default_icon": "icons/dev-sticker-icon.png",
    "default_title": "__MSG_extTitle__",
    "default_popup": "popup/main.html",
    "browser_style": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/lib/yaml-js.js",
        "js/data/constants.js",
        "js/dom.js",
        "js/utils.js",
        "js/content-script.js"
      ],
      "css": [
        "css/common.css"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "j.lahyani@hotmail.com",
      "strict_min_version": "143.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "<all_urls>"
  ],
  "options_ui": {
    "page": "options/main.html",
    "browser_style": true
  },
  "web_accessible_resources": [
    "icons/dev-sticker-icon.png",
    "images/*.png"
  ]
}