Examine source code of YouTube Channel Blocker

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "version": "1.8.0",
  "description": "__MSG_appDescription__",
  "default_locale": "ja",
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "css": [
        "content.css"
      ],
      "js": [
        "config.js",
        "i18n.js",
        "content-utils.js",
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": "icon48.png"
  },
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "options_ui": {
    "page": "settings.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "yt-channel-blocker@yourdomain.dev",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}