Examine source code of Extenssr Reloaded

{
  "name": "Extenssr Reloaded",
  "version": "3.11.29",
  "description": "'Extenssr Reloaded - A browser extension for GeoGuessr. Original extension by Andrei Onea.'",
  "icons": {
    "48": "icons/extenssr_48.png",
    "128": "icons/extenssr_128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.geoguessr.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content.bundle.js"
      ],
      "css": [
        "css/styles.css",
        "css/xterm.css"
      ]
    }
  ],
  "permissions": [
    "storage",
    "unlimitedStorage",
    "https://game-server.geoguessr.com/*"
  ],
  "background": {
    "scripts": [
      "worker.bundle.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "web_accessible_resources": [
    "icons/*.png",
    "icons/*.svg",
    "inject_main.bundle.js",
    "ai_worker.bundle.js",
    "geojson_data/*.geojson",
    "models/*",
    "wasm/*"
  ],
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      },
      "id": "{af2d5d9f-dac3-4bd0-ab59-d4c2fb75e698}"
    }
  }
}