Examine source code of SiteMacro

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "0.11",
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "icons": {
    "24": "icons/icon-24.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "optional_permissions": [
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    },
    "default_title": "__MSG_extensionName__",
    "default_popup": "popup.htm",
    "theme_icons": [
      {
        "light": "icons/icon-w.svg",
        "dark": "icons/icon.svg",
        "size": 16
      },
      {
        "light": "icons/icon-w.svg",
        "dark": "icons/icon.svg",
        "size": 32
      }
    ]
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "options_ui": {
    "page": "options.htm"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{100afed2-637a-46b0-bc60-38d1f90a5d72}"
    }
  }
}