Examine source code of Mars Surface Pathfinder

{
  "theme": {
    "images": {
      "theme_frame": "Mars_panorama2.jpg"
    },
    "colors": {
      "frame": "#a6602a",
      "tab_background_text": "#d6741e"
    }
  },
  "version": "2.0",
  "name": "Mars Surface Pathfinder",
  "manifest_version": 2,
  "description": "The Surface of Mars as seen by Mars pathfinder of the Twin Peeks."
}