Examine source code of Mountain Side Trees

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ccbaa3",
      "tab_background_text": "#080808"
    }
  },
  "version": "2.0",
  "name": "Mountain Side Trees",
  "manifest_version": 2,
  "description": "I took this photograph on the freeway as I was going to Bellingham. I quite love the way that trees look when sun is setting, This is quite a beautiful scene."
}