Examine source code of Algorithm to Wizard

{
  "manifest_version": 2,
  "name": "Algorithm to Wizard",
  "description": "Just another find and replace: Algorithm to Wizard",
  "version": "1.2",
  "permissions": [
    "tab"
  ],
  "short_name": "Algorithm to Wizard",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  }
}