Examine source code of 7Pro VS Firefox Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "7Pro VS Firefox Theme",
  "manifest_version": 2,
  "description": "A Firefox persona created to match the 7Pro visual style for Windows 7. You can find the 7Pro theme by Krissirk linked below.\n\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/f7c019a851ccad5517400a72ba1a8a33e88c724b1d995cfe476f7965933dfd4f/http%3A//www.deviantart.com/art/7Pro-Final-for-7-146771367\">http://www.deviantart.com/art/7Pro-Final-for-7-146771367</a>"
}