Examine source code of Uchiha Sasuke Red version

{
  "theme": {
    "images": {
      "theme_frame": "APnaruto_sasuke.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Uchiha Sasuke Red version",
  "manifest_version": 2,
  "description": "A beautiful persona to your Firefox by Bellas2Thiago. Visit our website: <a href=\"https://outgoing.prod.mozaws.net/v1/162d658bb1ddf0edb92f986b9115efc1e6ef3aaf4b0a36a4fc59fb9c48a3059f/http%3A//animepersonas.blogspot.com/\" rel=\"nofollow\">http://animepersonas.blogspot.com/</a>"
}