Examine source code of Winter ice

{
  "theme": {
    "images": {
      "theme_frame": "winterheader.jpg"
    },
    "colors": {
      "frame": "#195429",
      "tab_background_text": "#d97777"
    }
  },
  "version": "2.0",
  "name": "Winter ice",
  "manifest_version": 2,
  "description": "Ice covered tree branches during a local winter ice storm.  Very rare to happen in the south."
}