Examine source code of Anti-clipper

{
  "manifest_version": 3,
  "name": "Anti-clipper",
  "version": "1.0",
  "description": "Highlight or block YouTube Shorts based on a whitelist/blacklist of channels, to filter out re-uploaders and clippers.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://www.youtube.com/*"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "anti-clipper@preabiancaivan.github.io",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Anti-clipper",
    "default_icon": {
      "128": "icon128-on.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icon128.png"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ],
  "icons": {
    "128": "icon128.png"
  }
}