Examine source code of Nightwish Purple

{
  "theme": {
    "images": {
      "theme_frame": "nightwishheaderfixed.jpg"
    },
    "colors": {
      "frame": "#efa1f0",
      "tab_background_text": "#cfc0c0"
    }
  },
  "version": "2.0",
  "name": "Nightwish Purple",
  "manifest_version": 2,
  "description": "This is a persona for the popular symphonic metal band, Nightwish"
}