Examine source code of TDesign

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_TEMPLATE.png"
    },
    "colors": {
      "frame": "#474646",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "TDesign",
  "manifest_version": 2,
  "description": "This a my first Work, i'm want celebrate the Firefox 3.5.5 ... Enjoy\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/e20369d8f7adf0d010523453a8438a225ee7ae3471c9f71e297f12f3a1459027/http%3A//www.trocchia.it/\">http://www.trocchia.it/</a>"
}