Examine source code of Kangaroo in grass

{
  "theme": {
    "images": {
      "theme_frame": "Kangeroo11.jpg"
    },
    "colors": {
      "frame": "#354508",
      "tab_background_text": "#bafc05"
    }
  },
  "version": "2.0",
  "name": "Kangaroo in grass",
  "manifest_version": 2,
  "description": "Spring, sunny day, green grass at valley, and Kangaroos in Australia."
}