Examine source code of Kong88

{
  "theme": {
    "images": {
      "theme_frame": "GrassSky_web.jpg"
    },
    "colors": {
      "frame": "#3442a1",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Just Grass Sky and Clouds",
  "manifest_version": 2,
  "description": "I wanted just a simple-ish scenery of grass and sky. I added some butterflies and dragonflies for colour.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{b9617aa0-e6a7-4546-a845-92fc941c3d4f}"
    }
  }
}