Examine source code of Website Image Downloader

{
  "short_name": "Image Downloader",
  "name": "Image Downloader",
  "description": "Download images from any website with ease. Supports single and bulk downloads, image filtering, sorting, and lazy-loaded images.",
  "version": "2.0.1",
  "manifest_version": 3,
  "icons": {
    "16": "assets/icon_16.png",
    "20": "assets/icon_20.png",
    "24": "assets/icon_24.png",
    "32": "assets/icon_32.png",
    "48": "assets/icon_48.png",
    "64": "assets/icon_64.png",
    "128": "assets/icon_128.png",
    "256": "assets/icon_256.png",
    "512": "assets/icon_512.png"
  },
  "permissions": [
    "storage"
  ],
  "optional_permissions": [
    "downloads"
  ],
  "content_scripts": [
    {
      "js": [
        "content_scripts.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "Open image downloader"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a6d1f69d-28d2-4237-ac04-ed6eca53b684}"
    }
  },
  "sidebar_action": {
    "default_icon": {
      "16": "assets/icon_16.png",
      "20": "assets/icon_20.png",
      "24": "assets/icon_24.png",
      "32": "assets/icon_32.png",
      "48": "assets/icon_48.png",
      "64": "assets/icon_64.png",
      "128": "assets/icon_128.png",
      "256": "assets/icon_256.png",
      "512": "assets/icon_512.png"
    },
    "default_title": "Image Downloader",
    "default_panel": "sidebar.html"
  }
}