Examine source code of Twelvestring

{
  "theme": {
    "images": {
      "theme_frame": "twelvestring2.JPG"
    },
    "colors": {
      "frame": "#ededb4",
      "tab_background_text": "#ebea9f"
    }
  },
  "version": "2.0",
  "name": "Twelvestring",
  "manifest_version": 2,
  "description": "Picture of Twelvestring guitar decorated in pyrography for Ben Woodward, singer composer featuring Jimi Hendrix, Led Zeppelin, Crash Test Dummies, Red Indiand and trees"
}