Examine source code of Jimi Hendrix NB design

{
  "theme": {
    "images": {
      "theme_frame": "hendrix.jpg"
    },
    "colors": {
      "frame": "#ededed",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Jimi Hendrix NB design",
  "manifest_version": 2,
  "description": "Jimi Hendrix photoshop composing, musique, music, guitariste, culte, fender stratocaster...."
}