Examine source code of Rocks under water

{
  "theme": {
    "images": {
      "theme_frame": "rocksheader.jpg"
    },
    "colors": {
      "frame": "#e6e0a3",
      "tab_background_text": "#bfb9b9"
    }
  },
  "version": "2.0",
  "name": "Rocks under water",
  "manifest_version": 2,
  "description": "Rocks through rippled water in a stream."
}