Examine source code of SnapRegion - Capture and record

{
  "manifest_version": 3,
  "name": "SnapRegion - Screenshot & Region Saver",
  "version": "1.0.0",
  "description": "Capture visible screen, full page, or select any region with instant Copy to Clipboard and Save to Folder features.",
  "permissions": [
    "activeTab",
    "scripting",
    "downloads",
    "storage",
    "tabCapture",
    "desktopCapture"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "sandesh11245@gmail.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}