Examine source code of Hang Glider 2

{
  "theme": {
    "images": {
      "theme_frame": "gliderheader3.jpg"
    },
    "colors": {
      "frame": "#3f21c4",
      "tab_background_text": "#1c05eb"
    }
  },
  "version": "2.0",
  "name": "Hang Glider 2",
  "manifest_version": 2,
  "description": "Solo Glider soaring through the sky."
}