Examine source code of Chesscom2Lichess

{
  "manifest_version": 2,
  "name": "Chesscom2Lichess",
  "version": "1.5",
  "description": "Analyse your chess.com games on lichess.org",
  "homepage_url": "https://golim.github.io/",
  "background": {
    "scripts": [
      "src/background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "img/icon16.png",
    "32": "img/icon32.png",
    "192": "img/icon192.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.chess.com/*"
      ],
      "js": [
        "src/chesscom.js"
      ],
      "css": [
        "css/chesscom.css"
      ]
    },
    {
      "matches": [
        "*://lichess.org/paste",
        "*://*.lichess.org/paste"
      ],
      "js": [
        "src/lichess.js"
      ]
    }
  ],
  "options_ui": {
    "page": "settings/settings.html",
    "chrome_style": true
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "chesscom2lichess@golim.github.io"
    }
  }
}