Examine source code of Skipper

{
  "manifest_version": 3,
  "name": "Skipper",
  "version": "4.1.0",
  "description": "Automatically skips intros, recaps, and moves to the next episode on supported streaming sites.",
  "permissions": [
    "storage",
    "tabs",
    "activeTab"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Skipper",
    "default_popup": "popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "dist/content-script.js"
      ],
      "all_frames": true,
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "sites.json"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{933ca259-d87c-4c7b-97fb-e91acdd02475}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}