Examine source code of murtela

{
  "theme": {
    "images": {
      "theme_frame": "BETINA-CROATIA.jpg"
    },
    "colors": {
      "frame": "#0b44d4",
      "tab_background_text": "#08309e"
    }
  },
  "version": "2.0",
  "name": "murtela",
  "manifest_version": 2,
  "description": "Perfect place for HOLIDAY, small place on the middle of Adriatic sea, near national park KORNATI... on picture local traditional regatta..."
}