Examine source code of Cookie Clicker Tools

{
  "name": "Cookie Clicker Tools",
  "description": "A tool to \"help\" you play Cookie Clicker.",
  "version": "1.3",
  "manifest_version": 3,
  "content_scripts": [
    {
      "matches": [
        "https://orteil.dashnet.org/cookieclicker/",
        "http://orteil.dashnet.org/cookieclicker/"
      ],
      "run_at": "document_end",
      "js": [
        "src/main/run.js",
        "src/main/funcs.js"
      ]
    }
  ],
  "permissions": [
    "storage",
    "tabs"
  ],
  "action": {
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "./img/cookieGun.png",
      "32": "./img/cookieGun.png",
      "48": "./img/cookieGun.png",
      "128": "./img/cookieGun.png"
    }
  },
  "icons": {
    "16": "./img/cookieGun.png",
    "32": "./img/cookieGun.png",
    "48": "./img/cookieGun.png",
    "128": "./img/cookieGun.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "cookie-cliker-tools@redystum",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}