Examine source code of Harmloses Persona

{
  "theme": {
    "images": {
      "theme_frame": "harmlos-persona-b.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Harmloses Persona",
  "manifest_version": 2,
  "description": "join <a href=\"https://outgoing.prod.mozaws.net/v1/2957e74791dda67fbfbcfc675690a535fc825582e11d41a1354d4841ed472781/http%3A//www.harmlos.info\" rel=\"nofollow\">www.harmlos.info</a>"
}