Examine source code of MMI Studios V1

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#4a4a4a"
    }
  },
  "version": "2.0",
  "name": "MMI Studios V1",
  "manifest_version": 2,
  "description": "Uses the same design elements used in the MMI Studios branding identity and website. <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/859973dcacaa17a73a4a4b467ea54e94b8e19a3b217148b5d553072525fcec34/http%3A//www.mmi-studios.com\">http://www.mmi-studios.com</a>"
}