Examine source code of Graffiti Collage

{
  "theme": {
    "images": {
      "theme_frame": "graphitti_collage_header3.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Graffiti Collage",
  "manifest_version": 2,
  "description": "A theme developed from an abstract collage of graffiti and industrial photos from NYC."
}