Examine source code of Ubuntu Simple White

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#808080",
      "tab_background_text": "#c27d32"
    }
  },
  "version": "2.0",
  "name": "Ubuntu Simple White",
  "manifest_version": 2,
  "description": "A very simple ubuntu themed persona"
}