Examine source code of Calmity Retro Based

{
  "theme": {
    "images": {
      "theme_frame": "personasCalmityRetroHeader.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Calmity Retro Based",
  "manifest_version": 2,
  "description": "This is a design based on the amazing wallpaper created by pr09studio (Calmity Retro). Find it at:\n\nCalmity WP\n    by pr09studio\n    <a href=\"https://outgoing.prod.mozaws.net/v1/a9c2db835e61cf2ed23d2f34b2bf65d886041b1a0319efb3ab1c80d534552fce/http%3A//www.pr09studio.tk\" rel=\"nofollow\">http://www.pr09studio.tk</a>"
}