Examine source code of C-Metropolis II

{
  "theme": {
    "images": {
      "theme_frame": "C_Metropolis_Header3.png"
    },
    "colors": {
      "frame": "#999999",
      "tab_background_text": "#ffff33"
    }
  },
  "version": "2.0",
  "name": "C-Metropolis II",
  "manifest_version": 2,
  "description": "Citroen Metropolis Concept Car (II)"
}