Examine source code of KonvaJS Devtools

{
  "manifest_version": 3,
  "default_locale": "en",
  "name": "KonvaJS Devtools",
  "version": "1.0.1",
  "description": "Devtools for your Konva App",
  "browser_specific_settings": {
    "gecko": {
      "id": "maitrungduc1410@gmail.com"
    }
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "popup/index.html",
    "default_icon": "icon32_black.png"
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*",
        "<all_urls>"
      ],
      "js": [
        "content/all.iife.js"
      ]
    }
  ],
  "devtools_page": "devtools/index.html",
  "web_accessible_resources": [
    {
      "resources": [
        "*.js",
        "*.css",
        "*.svg",
        "content/detector.iife.js"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  }
}