Examine source code of Stuffbox

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Stuffbox",
  "manifest_version": 2,
  "description": "Seek for more at: <a href=\"https://outgoing.prod.mozaws.net/v1/ef5b554997ade6dc364ee26a183952b8a6cba81e91684d6d560d2cae0c771296/http%3A//www.thiagoart.com\" rel=\"nofollow\">www.thiagoart.com</a>"
}