Examine source code of ShieldCloaked Media Protection

{
  "manifest_version": 3,
  "name": "ShieldCloaked Media Protection",
  "version": "2.0.9",
  "homepage_url": "https://shieldcloaked.tech",
  "description": "ShieldCloaked Media Protection enhances your browsing experience by protecting from the harm of social engineering. It replaces nicknames and avatars on supported social media platforms.",
  "browser_specific_settings": {
    "gecko": {
      "id": "support@shieldcloaked.tech",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://*.steamcommunity.com/*",
    "*://*.shieldcloaked.tech/*",
    "*://*.quora.com/*",
    "*://*.youtube.com/*",
    "*://*.stackoverflow.com/*",
    "*://*.rutube.ru/*",
    "*://*.reddit.com/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*.png",
        "options/consent.html",
        "options/options.html",
        "options/about.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "icons/scmedia16.png",
    "32": "icons/scmedia32.png",
    "48": "icons/scmedia48.png",
    "128": "icons/scmedia128.png"
  },
  "action": {
    "default_icon": "icons/scmedia32.png",
    "default_popup": "/options/options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.steamcommunity.com/*",
        "*://*.shieldcloaked.tech/*",
        "*://*.quora.com/*",
        "*://*.youtube.com/*",
        "*://*.stackoverflow.com/*",
        "*://*.rutube.ru/*",
        "*://*.reddit.com/*"
      ],
      "js": [
        "main.js"
      ],
      "run_at": "document_start"
    }
  ],
  "options_page": "/options/options.html",
  "content_security_policy": {
    "extension_pages": "default-src 'self'; img-src 'self'; connect-src 'self' https://shieldcloaked.tech"
  }
}