Examine source code of Genshin Code Extension

{
  "manifest_version": 2,
  "name": "Gencode",
  "version": "1.0.0.1",
  "description": "Input a code and redirects you to code redemption",
  "icons": {
    "48": "icons/border-48.png"
  },
  "browser_action": {
    "browser_style": true,
    "default_popup": "popup/popup_code.html",
    "default_icon": {
      "48": "icons/border-48.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{755a385e-72b7-4b19-a266-ff479f440890}"
    }
  }
}