Examine source code of crusade2

{
  "theme": {
    "images": {
      "theme_frame": "g.jpg"
    },
    "colors": {
      "frame": "#a00000",
      "tab_background_text": "#edecc5"
    }
  },
  "version": "2.0",
  "name": "crusade2",
  "manifest_version": 2,
  "description": "ef"
}