Examine source code of Close Waterfall

{
  "theme": {
    "images": {
      "theme_frame": "serra-cipo2.jpg"
    },
    "colors": {
      "frame": "#111833",
      "tab_background_text": "#e6f241"
    }
  },
  "version": "2.0",
  "name": "Close Waterfall",
  "manifest_version": 2,
  "description": "Close Waterfall - Serra do Cipo - Minas Gerais - Brasil\nClose de Cachoeira"
}