Examine source code of OrangeOverdrive

{
  "theme": {
    "images": {
      "theme_frame": "PersonasRavee_OrangeOverdrive_Header.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "OrangeOverdrive",
  "manifest_version": 2,
  "description": "OrangeOverdrive by <a href=\"https://outgoing.prod.mozaws.net/v1/54a4ff7b54a11275758e66f07d545a15bdd0c8a242fb694f439e602324d0d55e/http%3A//ravee.de\" rel=\"nofollow\">ravee.de</a>|sign"
}