Examine source code of Jw firefox

{
  "theme": {
    "images": {
      "theme_frame": "foxheader2500x200.jpg"
    },
    "colors": {
      "frame": "#ff6600",
      "tab_background_text": "#cc6600"
    }
  },
  "version": "2.0",
  "name": "Jw firefox",
  "manifest_version": 2,
  "description": "It's a theme I did with the Firefox logo on it. I like the Firefox, it looks nice. It got my name on it so dont blame you if you dont like it because of that.."
}