Examine source code of Text Replacer

{
  "manifest_version": 3,
  "name": "Text Replacer",
  "version": "1.1.0",
  "description": "Replace custom words and phrases on webpages.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_title": "Custom Text Replacer",
    "default_icon": "icons/icon.svg",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "custom-text-replacer@maikel.local",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}