Examine source code of Free JSON Formatter

{
  "manifest_version": 3,
  "name": "Free JSON Formatter",
  "version": "0.2.1",
  "description": "Fast, private JSON viewer. Collapsible tree, search, themes. No ads, no tracking, no network requests. Open source.",
  "homepage_url": "https://github.com/andret2344/free-json-formatter",
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Free JSON Formatter settings",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "console-handle.js"
      ],
      "run_at": "document_end",
      "world": "MAIN"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "free-json-formatter@andret2344",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}