Examine source code of Volvo Concept

{
  "theme": {
    "images": {
      "theme_frame": "Header_Volvo_Concept.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#fff5e8"
    }
  },
  "version": "2.0",
  "name": "Volvo Concept",
  "manifest_version": 2,
  "description": "Nice VOLVO S60 concept theme.\nI was surprised that there are more Volvo trucks themes then Volvo cars, so I've decided to make my own persona."
}