Examine source code of Blue Tao

{
  "theme": {
    "images": {
      "theme_frame": "persona.jpg"
    },
    "colors": {
      "frame": "#d8edeb",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Blue Tao",
  "manifest_version": 2,
  "description": "Nothing special, just a nice yin-yang with a little nova behind it on a smooth blue/black gradient."
}