Examine source code of recycled

{
  "theme": {
    "images": {
      "theme_frame": "cardheaderfirefox2.jpg"
    },
    "colors": {
      "frame": "#919191",
      "tab_background_text": "#e2f7de"
    }
  },
  "version": "2.0",
  "name": "recycled",
  "manifest_version": 2,
  "description": "detail of a sculpture I made from reclaimed cardboard boxes"
}