Examine source code of KS cool haven

{
  "theme": {
    "images": {
      "theme_frame": "Kansasspring-a.jpg"
    },
    "colors": {
      "frame": "#515c9e",
      "tab_background_text": "#0f375e"
    }
  },
  "version": "2.0",
  "name": "KS cool haven",
  "manifest_version": 2,
  "description": "scene of Kansas wildlife preservation"
}