Examine source code of Firefox & Windows

{
  "theme": {
    "images": {
      "theme_frame": "firefox_final_header.jpg"
    },
    "colors": {
      "frame": "#22c2ff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Firefox & Windows",
  "manifest_version": 2,
  "description": "Using the graphic art from the Windows Welcome theme I posted, I pointed the theme in the direction of a Firefox-Windows mixed look. Both worlds in one!"
}