Examine source code of Lichess Importer

{
  "manifest_version": 3,
  "name": "Lichess Importer",
  "version": "1.1.4",
  "description": "Analyse Chess.com games on Lichess",
  "author": "LeSpec",
  "homepage_url": "https://github.com/LeSpec/Lichess-Importer",
  "permissions": [
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://lichess.org/*"
  ],
  "icons": {
    "16": "src/icons/icon-16.png",
    "32": "src/icons/icon-32.png",
    "48": "src/icons/icon-48.png",
    "96": "src/icons/icon-96.png",
    "128": "src/icons/icon-128.png"
  },
  "background": {
    "scripts": [
      "src/background/background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "src/popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.chess.com/*"
      ],
      "js": [
        "src/content_scripts/anchorClickListener.js",
        "src/content_scripts/pageClickListener.js",
        "src/content_scripts/uuidRequester.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{23b7cff7-adc1-400d-a216-4b84e2257545}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  }
}