Examine source code of Kity Screenshot

{
  "name": "Kity Screenshot",
  "version": "1.5",
  "description": "Demonstrate screenshot functionality in the browser tab",
  "background": {
    "persistent": false,
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Kity Screenshot"
  },
  "permissions": [
    "activeTab"
  ],
  "manifest_version": 2
}