Examine source code of Cool Clash

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#261e4a",
      "tab_background_text": "#c8b5e8"
    }
  },
  "version": "2.0",
  "name": "Cool Clash",
  "manifest_version": 2,
  "description": "Cool Clash is a fighting game for iPhone. It features over 3000 frames of hand-drawn animation and swiping combos! <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/77165fac7c0cf91caf0bffc2023abeb3d7ca360debc44dd60c8f2a8fc18d2a8e/http%3A//coolclash.com\">coolclash.com</a>"
}