Examine source code of Rain on Chestnut Tree

{
  "theme": {
    "images": {
      "theme_frame": "RainingonChesnutTreeHCustom.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Rain on Chestnut Tree",
  "manifest_version": 2,
  "description": "summer, rain, leaves, tree, chestnut, nuts, food, green, nature, fresh, cool, raining, \n\nDesigned by MaDonna"
}