Examine source code of Splinter

{
  "theme": {
    "images": {
      "theme_frame": "firefox-head6.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Splinter",
  "manifest_version": 2,
  "description": "Colorful Brushes used to create this splinter abstract. (Created on my Own)"
}