Examine source code of Chess Helper: Notation, Analysis, Time Alerts

{
  "manifest_version": 3,
  "name": "Chess Helper: Notation, Analysis, Time Alerts",
  "short_name": "Chess Helper",
  "version": "1.7.0",
  "description": "Highlights chess notation, alerts you on low time, opens free Lichess analysis, and checks your opponent for cheating.",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "*://*.lichess.org/*",
    "*://*.chess.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.lichess.org/*",
        "*://*.chess.com/*"
      ],
      "exclude_matches": [
        "*://lichess.org/paste*"
      ],
      "js": [
        "content.js"
      ],
      "css": []
    },
    {
      "matches": [
        "*://lichess.org/paste*"
      ],
      "js": [
        "lichess-paste.js"
      ],
      "run_at": "document_end"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "chess-notation-helper@mldnq.com",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}