Examine source code of Purple Sparkles

{
  "theme": {
    "images": {
      "theme_frame": "stars.jpg"
    },
    "colors": {
      "frame": "#4b005f",
      "tab_background_text": "#efe0ef"
    }
  },
  "version": "2.0",
  "name": "Purple Sparkles",
  "manifest_version": 2,
  "description": "Sparkly stars on a dark purple background that will not clash with your toolbars"
}