Examine source code of Ancient Map

{
  "theme": {
    "images": {
      "theme_frame": "piri_reis_header.jpg"
    },
    "colors": {
      "frame": "#030303",
      "tab_background_text": "#030303"
    }
  },
  "version": "2.0",
  "name": "Ancient Map",
  "manifest_version": 2,
  "description": "Piri Reis gained fame as a cartographer when a small part of his first world map (prepared in 1513) was discovered in 1929 at Topkapı Palace in Istanbul. The most surprising aspect was the presence of the Americas on an Ottoman map, making it the oldest known Turkish map showing the New World, and one of the oldest maps of America still in existence in the world."
}