Examine source code of Fab Wishlist

{
  "manifest_version": 3,
  "name": "Fab Wishlist",
  "version": "0.6",
  "description": "Save your favorite game assets from Fab.com to a wishlist!",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "*://*.fab.com/*"
  ],
  "background": {
    "page": "background.html"
  },
  "action": {
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.fab.com/*"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/icon-48.png",
        "icons/icon-96.png",
        "content-style.css",
        "wishlist.js",
        "wishlist.html",
        "icons/loading.gif",
        "index.js",
        "index.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "fabfav@fab.com",
      "strict_min_version": "109.0"
    }
  }
}