Examine source code of Les 7 nains

{
  "theme": {
    "images": {
      "theme_frame": "3halo.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#f0efa3"
    }
  },
  "version": "2.0",
  "name": "Les 7 nains",
  "manifest_version": 2,
  "description": "7 nains\nBlanche neige\nsimplet, dormeur, grincheux, prof, atchoum, joyeux, timide, prince charmant"
}