Examine source code of Netflix Leaving Soon

{
  "manifest_version": 3,
  "name": "Netflix Leaving Soon",
  "version": "1.0.9",
  "description": "Scans netflix list and creates a list of titles that are leaving soon.",
  "permissions": [
    "activeTab",
    "scripting",
    "tabs"
  ],
  "host_permissions": [
    "*://*.netflix.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "netflix-leaving-soon@dan.dev",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_title": "Check Titles",
    "default_icon": "assets/icon.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "service_worker": "js/background.js"
  },
  "icons": {
    "128": "assets/icon.png"
  }
}