Examine source code of Sleep Wallet Extension

{
  "manifest_version": 3,
  "name": "Sleep Wallet Extension",
  "description": "This item is a crypto wallet for sleep-to-earn network. It can support you to do: transactions (MATIC, GSPT, SPT, owner token)",
  "version": "1.0.1",
  "action": {
    "default_popup": "index.html",
    "default_title": "Wallet Extension"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "dattrinhquoc112@gmail.com"
    }
  }
}