Examine source code of Tab Reloader

{
  "manifest_version": 2,
  "name": "Tab Reloader",
  "short_name": "TR",
  "author": "Peter Badida",
  "developer": {
    "name": "Peter Badida",
    "url": "https://github.com/KeyWeeUsr"
  },
  "homepage_url": "https://github.com/KeyWeeUsr/tab-reloader",
  "description": "Reload available tabs efficiently",
  "version": "1.0",
  "permissions": [
    "tabs",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "main.js"
    ]
  },
  "icons": {
    "16": "icons/icon.svg",
    "28": "icons/icon.svg",
    "32": "icons/icon.svg",
    "64": "icons/icon.svg",
    "128": "icons/icon.svg"
  },
  "browser_action": {
    "browser_style": true,
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon.svg",
      "28": "icons/icon.svg",
      "32": "icons/icon.svg",
      "64": "icons/icon.svg",
      "128": "icons/icon.svg"
    }
  }
}