Examine source code of PoE Expand Challenges

{
  "manifest_version": 3,
  "name": "PoE Expand Challenges",
  "version": "1.2.1",
  "description": "Expand or hide all (in)complete PoE challenges. This product isn't affiliated with or endorsed by Grinding Gear Games in any way.",
  "author": "dannyb.cws@gmail.com",
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqQJIcyAudBMMfLZqur7M7KonHB0DyWe2JtShMYOv3i6Z+8oby7DqmgtjJClcptfbADVwFBSonXHg0mRWlGiU7XcFuCoR1AjI3ZeMbNkgZjTsVyp7FHUQ8smHGswq52niqp4JO6IfwPUztUofikKXVdMEEUKn/lR/8kMLqGLo9wvYQu39n8pybQkqB+sCOEulwY3c3Rr4wI1VRWujsWszbMasTDJNQ7KmoWCmbUm6+SOYsYd7hvhUWeQjfgDymTrIKIDd6/P2CnCVMFwLoroxmgRkIG6KwFDy4dU/nq+Cdn5oykYVCf5EHFnYfIMdNpnXD5ctWVg/2t9dVDPlNNEFHQIDAQAB",
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/content.js"
      ],
      "css": [
        "css/style.css"
      ],
      "matches": [
        "https://www.pathofexile.com/account/view-profile/*/challenges*"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "images/button-expand-complete.png",
        "images/button-expand-incomplete.png",
        "images/button-collapse-complete.png",
        "images/button-collapse-incomplete.png",
        "images/button-hide-complete.png",
        "images/button-hide-incomplete.png",
        "images/button-show-complete.png",
        "images/button-show-incomplete.png",
        "images/button-item-normal.png",
        "images/button-item-toggled.png",
        "images/button-number-normal.png",
        "images/button-number-toggled.png",
        "images/button-pin-normal.png",
        "images/button-pin-toggled.png",
        "images/pin.png"
      ],
      "matches": [
        "https://www.pathofexile.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "dannyb.cws@gmail.com",
      "strict_min_version": "109.0"
    },
    "gecko_android": {
      "strict_min_version": "109.0"
    },
    "safari": {
      "strict_min_version": "15.4"
    }
  }
}