Examine source code of Three little deer

{
  "theme": {
    "images": {
      "theme_frame": "threedearheader.jpg"
    },
    "colors": {
      "frame": "#f7f2f2",
      "tab_background_text": "#08f3f7"
    }
  },
  "version": "2.0",
  "name": "Three little deer",
  "manifest_version": 2,
  "description": "Three deer photographed while boating along the South Magnetewan River, Ontario Canada"
}