Examine source code of Faceit Exts

{
  "description": "Faceit Exts is a extension improve experience and adds some features",
  "version": "1.2.0",
  "name": "Faceit Exts",
  "manifest_version": 2,
  "permissions": [
    "https://api.faceit.com/",
    "storage"
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "run_at": "document_end",
      "matches": [
        "https://www.faceit.com/*"
      ],
      "js": [
        "contentScript.bundle.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "icon48.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.bundle.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5c462c79-0eff-4055-9cf4-28aea398e625}"
    }
  }
}