Examine source code of YouTube Info Fix

{
  "manifest_version": 3,
  "name": "YouTube Info Fix",
  "version": "5.0",
  "description": "Info Card for videos",
  "permissions": [
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "https://www.youtube.com/*",
    "https://www.googleapis.com/*"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "yt-info-fix@timo.dev",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/watch*",
        "https://www.youtube.com/shorts/*"
      ],
      "js": [
        "i18n.js",
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "YT Subscriber Count Fix",
    "default_icon": {
      "128": "icon.jpg"
    }
  },
  "icons": {
    "48": "icon.png"
  }
}