Examine source code of Bilan Chessmont

{
  "manifest_version": 3,
  "name": "Bilan Chessmont",
  "version": "1.3.0",
  "description": "Détecte la fin de partie sur Lichess et Chess.com pour afficher un bilan",
  "icons": {
    "16": "icons/16x16.png",
    "48": "icons/48x48.png",
    "128": "icons/128x128.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/16x16.png",
      "48": "icons/48x48.png",
      "128": "icons/128x128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f8a3c9d2-7b4e-4a1f-9e2c-5d8b6a3f1e7c}",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.lichess.org/*",
        "*://*.chess.com/*"
      ],
      "js": [
        "content/content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*.png"
      ],
      "matches": [
        "*://*.lichess.org/*",
        "*://*.chess.com/*"
      ]
    }
  ]
}