Examine source code of Yosemite Valley

{
  "theme": {
    "images": {
      "theme_frame": "Yosemite-Background1.jpg"
    },
    "colors": {
      "frame": "#757474",
      "tab_background_text": "#084514"
    }
  },
  "version": "2.0",
  "name": "Yosemite Valley",
  "manifest_version": 2,
  "description": "A breathtaking view of Yosemite Valley and its spectacular granite geography."
}