Examine source code of Harley Quinn

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Harley Quinn",
  "manifest_version": 2,
  "description": "Second try, hopefully the first one disappears. Harley Quinn at your service! Suggestions are welcome & encouraged, more than happy to tinker with it to fit more monitors/browsers/tv's & improve the visual. I'm a big H.Q. fan and could make more (many more styles/images to work with) if there's an interest. Thanx & please rate it! sh0rtbus42o120778@gmail.com (I only check this e-mail once a week, be patient I will reply) Use the Subject: Mozilla Theme Request"
}