manifest.json

{
  "manifest_version": 3,
  "name": "Dark design detector",
  "version": "1.0",
  "description": "Detects dark design in shopping website.",
  "icons": {
      "16": "images/16-capy.png",
      "32": "images/32-capy.png",
      "48": "images/48-capy.png",
      "128": "images/128-capy.png",
      "512": "images/512-capy.png"
  },
  "permissions": [
      "activeTab",
      "<all_urls>",
      "storage", 
      "downloads",
      "scripting", 
      "tabs", 
      "webRequest", 
      "webNavigation"
    ],
  "action": {
      "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": ["<all_urls>"],
      "js": ["content.js", "popup.js"],
      "css": ["content.css"]
    }
  ],
  "background": {
      "service_worker": "background.js",
      "persistence": true
  }
}