Examine source code of Tikal Board Game

{
  "theme": {
    "images": {
      "theme_frame": "p_tikal_3000x200b.jpg"
    },
    "colors": {
      "frame": "#99ff99",
      "tab_background_text": "#66ff99"
    }
  },
  "version": "2.0",
  "name": "Tikal Board Game",
  "manifest_version": 2,
  "description": "Tikal Board game by Wolfgang Kramer and Michael Kiesling."
}