Examine source code of Asteroid Impact

{
  "theme": {
    "images": {
      "theme_frame": "LonarImpact2.jpg"
    },
    "colors": {
      "frame": "#09910f",
      "tab_background_text": "#0e0a8c"
    }
  },
  "version": "2.0",
  "name": "Asteroid Impact",
  "manifest_version": 2,
  "description": "This is where two large asteroids crashed into earth forming large holes."
}