Examine source code of Wood Circuitry

{
  "theme": {
    "images": {
      "theme_frame": "Backdrop_Firefox_Browser_Background.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#d9ccc8"
    }
  },
  "version": "2.0",
  "name": "Wood Circuitry",
  "manifest_version": 2,
  "description": "A design of circuitry overlaying wood and floral patterns. A dark red wood feel."
}