Examine source code of goodie cashback

{
  "manifest_version": 3,
  "name": "goodie cashback",
  "version": "1.0.0",
  "description": "__MSG_extDesc__",
  "background": {
    "scripts": [
      "src/pages/background/index.js"
    ],
    "type": "module"
  },
  "default_locale": "pl",
  "minimum_chrome_version": "108.0",
  "action": {
    "default_popup": "src/pages/popup/index.html",
    "default_icon": "BrowserIcon128-neutral.png"
  },
  "icons": {
    "16": "BrowserIcon16-neutral.png",
    "32": "BrowserIcon32-neutral.png",
    "48": "BrowserIcon48-neutral.png",
    "128": "BrowserIcon128-neutral.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "js": [
        "src/pages/content/index.js"
      ],
      "css": [
        "contentStyles.css"
      ],
      "all_frames": false
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "cookies",
    "alarms"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "goodie-cashback-firefox@goodie.pl"
    }
  }
}