Examine source code of Geo & his Tribe

{
  "theme": {
    "images": {
      "theme_frame": "geotribe.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Geo & his Tribe",
  "manifest_version": 2,
  "description": "An illustrated kid's book called \"Geo's Tribe\" which is a story about a bunch of dinosaurs looking for their families and thinking that the hills, surroundings, creatures, might have a secret to reveal."
}