Examine source code of Dark Glass

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_template_Unicora_darkglass.jpg"
    },
    "colors": {
      "frame": "#faf7f7",
      "tab_background_text": "#fcfcfc"
    }
  },
  "version": "2.0",
  "name": "Dark Glass",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/6bd194034468a4e915dfac76b28083089949e374236c66823bf774afe2942647/http%3A//Unicora.com\" rel=\"nofollow\">Unicora.com</a> is a specialist web design company for small business owners, sole traders and freelancers."
}