Examine source code of Les 2 moulins

{
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    "images": {
      "theme_frame": "firefox5.jpg"
    },
    "colors": {
      "frame": "#ff0000",
      "tab_background_text": "#ff0000"
    }
  },
  "version": "2.0",
  "name": "Les 2 moulins",
  "manifest_version": 2,
  "description": "The two mills from Amélie Poulain"
}