Examine source code of Mongolia Moonrise

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#a8ebed",
      "tab_background_text": "#020003"
    }
  },
  "version": "2.0",
  "name": "Mongolia Moonrise",
  "manifest_version": 2,
  "description": "Moonrise over the Khogno Khan mountains in central Mongolia"
}