Examine source code of Ninja Romeo

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Ninja Romeo",
  "manifest_version": 2,
  "description": "This is our new entrance into the Web world. This theme is clean and neat transparent style. It relates to our site <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/b766d78053ea4aec43ca40812b12a0f00f44b902e23a278a2a9e547faea4b525/http%3A//www.ninjaromeo.com\">Ninja Romeo</a>."
}