Examine source code of low—radical

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  "version": "0.3.0",
  "default_locale": "en_US",
  "icons": {
    "16": "assets/icons/favicon-16.png",
    "32": "assets/icons/favicon-32.png",
    "48": "assets/icons/favicon-48.png",
    "128": "assets/icons/favicon-128.png"
  },
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://github.com/lowwebtech/low-radical",
  "short_name": "low-radical",
  "author": "lowwebtech",
  "web_accessible_resources": [
    "assets/*"
  ],
  "permissions": [
    "tabs",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icons/favicon-16.png",
      "32": "assets/icons/favicon-32.png",
      "48": "assets/icons/favicon-48.png",
      "128": "assets/icons/favicon-128.png"
    },
    "default_title": "low-radical"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "js/background.bundle.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{754FB1AD-CC3B-4856-B6A0-7786F8CA9D17}"
    }
  }
}