Examine source code of Grandmaster Vision Chess

{
  "manifest_version": 3,
  "name": "Grandmaster Vision - Chess Assistant",
  "version": "1.1.0",
  "description": "Real-time chess engine analysis and move visualization overlay for Chess.com. Easy to configure with Stockfish v17.1 with 0 - 20 skill level and move counts.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "*://*.chess.com/*"
  ],
  "icons": {
    "16": "icon.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "action": {
    "default_icon": "icon.png",
    "default_title": "GM Vision"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.chess.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "lib/stockfish.js",
        "lib/stockfish.wasm",
        "styles.css"
      ],
      "matches": [
        "*://*.chess.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "gm-vision-v2@my-chess-tools.org",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "browsingActivity",
          "websiteContent",
          "websiteActivity"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self';"
  }
}