Examine source code of Through the clouds

{
  "theme": {
    "images": {
      "theme_frame": "Throughthecloudsheader.jpg"
    },
    "colors": {
      "frame": "#bfb8b8",
      "tab_background_text": "#e4f2eb"
    }
  },
  "version": "2.0",
  "name": "Through the clouds",
  "manifest_version": 2,
  "description": "Just a picture made through the airplane window..."
}