Examine source code of cool texture style banner

{
  "theme": {
    "images": {
      "theme_frame": "Untitled-1.jpg"
    },
    "colors": {
      "frame": "#8a5b5b",
      "tab_background_text": "#b0adad"
    }
  },
  "version": "2.0",
  "name": "cool texture style banner",
  "manifest_version": 2,
  "description": "Messed about in photoshop and made this"
}