Examine source code of Storm Breaking

{
  "theme": {
    "images": {
      "theme_frame": "Optimized-cloudysky.jpg"
    },
    "colors": {
      "frame": "#a5f2e0",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Storm Breaking",
  "manifest_version": 2,
  "description": "Dark storm clouds over the Santa Fe National Forest bring the promise of snow while the sun threatens to break through."
}