Examine source code of Ambient Blue

{
  "theme": {
    "images": {
      "theme_frame": "persona1.jpg"
    },
    "colors": {
      "frame": "#bdbdbd",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Ambient Blue",
  "manifest_version": 2,
  "description": "This Persona is a very abstract design. It is pretty nice if you would prefer an ambient layout that isn't so busy."
}