Examine source code of Web Image Downloader

{
  "manifest_version": 2,
  "name": "Web Image Downloader",
  "version": "1.1.3",
  "description": "Enables images to be downloaded from pages which otherwise prevent (or discourage) downloading. Currently supports: Pinterest, Instagram, Flickr, Artstation, DeviantArt, WorldTattooGallery, AliExpress and YouTube thumbnails",
  "icons": {
    "48": "icons/v2/wid-48.png",
    "96": "icons/v2/wid-96.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false,
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.artstation.com/*",
        "*://*.flickr.com/*",
        "*://*.pinterest.com/*",
        "*://*.pinterest.co.uk/*",
        "*://*.instagram.com/*",
        "*://*.deviantart.com/*",
        "*://*.youtube.com/*",
        "*://*.worldtattoogallery.com/*",
        "*://*.aliexpress.com/item/*"
      ],
      "js": [
        "content_scripts/getsrc_any.js"
      ]
    }
  ],
  "permissions": [
    "downloads",
    "tabs",
    "contextMenus",
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "billy.pentney@gmail.com",
      "strict_min_version": "58.0"
    }
  }
}