Examine source code of Black by 2FRESH

{
  "theme": {
    "images": {
      "theme_frame": "persona_hdr_2F_blk.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Black by 2FRESH",
  "manifest_version": 2,
  "description": "Black by 2FRESH\n<a href=\"https://outgoing.prod.mozaws.net/v1/832ceda2d3e578ed20bd940948956a6c87d1fcce131757d7a23ab5dfd4d0a1bf/http%3A//www.2fresh.com\" rel=\"nofollow\">http://www.2fresh.com</a>"
}