Examine source code of Jonetsu Yume

{
  "theme": {
    "images": {
      "theme_frame": "personas.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000069"
    }
  },
  "version": "2.0",
  "name": "Jonetsu Yume",
  "manifest_version": 2,
  "description": "Theme officiel de <a href=\"https://outgoing.prod.mozaws.net/v1/27dcdc917c9ad8f5bc21c6a6e98dbcffab7f83d3f1cd05405d669ca7c9faa8ed/http%3A//Jonetsu-yume.jeun.fr\" rel=\"nofollow\">Jonetsu-yume.jeun.fr</a> :)"
}