Examine source code of Hanging Icicles

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#9384ad",
      "tab_background_text": "#3309de"
    }
  },
  "version": "2.0",
  "name": "Hanging Icicles",
  "manifest_version": 2,
  "description": "Icicles hanging"
}