Examine source code of Nutroscience

{
  "theme": {
    "images": {
      "theme_frame": "nutroheader.png"
    },
    "colors": {
      "frame": "#d4d4d4",
      "tab_background_text": "#d3d3d6"
    }
  },
  "version": "2.0",
  "name": "Nutroscience",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/1229cb46ff97869c8acd41176d5d100749fd5df9e2da069d3798ff92f6e7926a/http%3A//Nutroscience.com\" rel=\"nofollow\">Nutroscience.com</a>"
}