Examine source code of FreeAuctionDesigns

{
  "theme": {
    "images": {
      "theme_frame": "freeauctiontop.jpg"
    },
    "colors": {
      "frame": "#dbdbdb",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "FreeAuctionDesigns",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/b005fee3a67b3e157835aa29dc3cf653dfc3ff88d8b022c6de8b922b5cc78cbd/http%3A//FreeAuctionDesigns.com\" rel=\"nofollow\">FreeAuctionDesigns.com</a> - Free auction designs and more."
}