Examine source code of Ubuntu Grey Wave

{
  "theme": {
    "images": {
      "theme_frame": "Ubuntu-Grey-Tuxjpg.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Ubuntu Grey Wave",
  "manifest_version": 2,
  "description": "A simple yet sufficient grey persona with Ubuntu brand. It's my first. Please be kind.  ;)"
}