Examine source code of Debug Panel

{
  "manifest_version": 2,
  "name": "Debug Panel",
  "description": "This extension provides read debug logs from web server with out integration in html",
  "homepage_url": "https://github.com/MihailDev/debug-panel",
  "version": "0.11resigned1",
  "permissions": [
    "<all_urls>",
    "tabs",
    "webRequest"
  ],
  "icons": {
    "128": "/icons/128.png",
    "200": "/icons/200.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "devtools_page": "devtools.html",
  "browser_specific_settings": {
    "gecko": {
      "id": "{56aaf854-57df-4f8c-bdc3-4b82575c2b3f}"
    }
  }
}