Examine source code of cailloux

{
  "theme": {
    "images": {
      "theme_frame": "cailloux_up.jpg"
    },
    "colors": {
      "frame": "#a0a1ba",
      "tab_background_text": "#b8cdff"
    }
  },
  "version": "2.0",
  "name": "cailloux",
  "manifest_version": 2,
  "description": "Les cailloux du jardin."
}