Examine source code of Red Mess

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_TEMPLATE.png"
    },
    "colors": {
      "frame": "#949494",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Red Mess",
  "manifest_version": 2,
  "description": "Just a random energetic design.\n\nCredits to: Suddenly Spring brush designed by GValkyrie\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/5559f18b849faca6a0ec9b295b2ee4c04121cc4452aac2688e9080817eb0fcfb/http%3A//qbrushes.com/plants/suddenly-spring/\">http://qbrushes.com/plants/suddenly-spring/</a>\n\n...and me. :)"
}