Examine source code of Sweet Decoder

{
  "name": "Sweet Decoder",
  "version": "1.0.1",
  "description": "this is a burp suite decoder extension",
  "manifest_version": 3,
  "author": "yousif ibrahim",
  "action": {
    "default_popup": "index.html",
    "default_title": "Sweet Decoder"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "j03ibra@gmail.com",
      "strict_min_version": "60.0"
    }
  }
}