Examine source code of Erable en automne.

{
  "theme": {
    "images": {
      "theme_frame": "feuillerableautomnehaut.jpg"
    },
    "colors": {
      "frame": "#0d0101",
      "tab_background_text": "#0d0101"
    }
  },
  "version": "2.0",
  "name": "Erable en automne.",
  "manifest_version": 2
}