Examine source code of Image Extractor - Extract Images from Any Website

{
  "manifest_version": 3,
  "name": "Extract Images from any Websites",
  "version": "1.0.0",
  "description": "Extract images from the current page and review them in a filterable gallery.",
  "permissions": [
    "activeTab",
    "tabs",
    "storage",
    "downloads",
    "scripting",
    "contextMenus"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "assets/background.js"
    ]
  },
  "action": {
    "default_title": "Extract Images from any Websites",
    "default_popup": "sidepanel.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "assets/content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extract-images-from-any-websites@local.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}