Examine source code of PIKEme Rainbow

{
  "theme": {
    "images": {
      "theme_frame": "pikeme.com_rainbow_header.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "PIKEme Rainbow",
  "manifest_version": 2,
  "description": "Rainbow colored persona by <a href=\"https://outgoing.prod.mozaws.net/v1/99c16c3bbe47ebd33935b5cb10d579c3309a8cc02491e2d27c2996db27ba7652/http%3A//www.pikeme.com\" rel=\"nofollow\">www.pikeme.com</a>."
}