Examine source code of Home Assistant Quick Restart

{
  "manifest_version": 2,
  "name": "Home Assistant Quick Restart",
  "description": "Checks the config and restarts Home Assistant found in active browser tab with single button quick access, no configuration required",
  "version": "2.0",
  "author": "Warwick Ward",
  "homepage_url": "https://github.com/warwickofthegh/Browser-Extension-Home-Assistant-Quick-Restart",
  "icons": {
    "16": "images/icon_enabled-16.png",
    "24": "images/icon_enabled-24.png",
    "32": "images/icon_enabled-32.png",
    "48": "images/icon_enabled-48.png",
    "128": "images/icon_enabled-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "page_action": {
    "default_icon": {
      "16": "images/icon_disabled-16.png",
      "24": "images/icon_disabled-24.png",
      "32": "images/icon_disabled-32.png",
      "48": "images/icon_disabled-48.png",
      "128": "images/icon_disabled-128.png"
    },
    "default_popup": "popup.html",
    "default_title": "Home Assistant Quick Restart"
  },
  "commands": {
    "_execute_page_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+H",
        "mac": "MacCtrl+Shift+H"
      },
      "description": "Home Assistant Quick Restart"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "activeTab"
  ]
}