Examine source code of Ninstation

{
  "theme": {
    "images": {
      "theme_frame": "ninstation_header_2.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#292929"
    }
  },
  "version": "2.0",
  "name": "Ninstation",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/cb6b6dda76e74ae8c1411ca67d665a81e507d7fe2505a424f326dbbd20fcc968/http%3A//ninstation.com\" rel=\"nofollow\">ninstation.com</a>, all things Wii and Nintendo!"
}