Examine source code of Smart Download Renamer

{
  "manifest_version": 3,
  "name": "Smart Download Renamer",
  "version": "1.0.0",
  "description": "Rename downloaded files based on custom rules",
  "permissions": [
    "downloads",
    "storage",
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.svg",
      "48": "icons/icon-48.svg",
      "128": "icons/icon-128.svg"
    }
  },
  "background": {
    "scripts": [
      "smart-rename-utils.js",
      "background.js"
    ]
  },
  "icons": {
    "16": "icons/icon-16.svg",
    "48": "icons/icon-48.svg",
    "128": "icons/icon-128.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4a2f9f5c-1b8d-4e9a-9c5f-2d8b4a6c9e1f}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "120.0"
    }
  }
}