Examine source code of LinkQR

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.21",
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "incognito": "spanning",
  "icons": {
    "128": "icon-web-128.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_title": "__MSG_extensionName__",
    "default_popup": "popup/linkqr.html",
    "theme_icons": [
      {
        "light": "icons/icon-light@16.png",
        "dark": "icons/icon-dark@16.png",
        "size": 16
      },
      {
        "light": "icons/icon-light@32.png",
        "dark": "icons/icon-dark@32.png",
        "size": 32
      },
      {
        "light": "icons/icon-light.png",
        "dark": "icons/icon-dark.png",
        "size": 48
      },
      {
        "light": "icons/icon-light@2x.png",
        "dark": "icons/icon-dark@2x.png",
        "size": 96
      }
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e9b14b24-2f76-49f6-b8cf-4a8d08ab5b99}"
    }
  }
}