Examine source code of Instabledesign 1

{
  "theme": {
    "images": {
      "theme_frame": "personnas_header.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffcc00"
    }
  },
  "version": "2.0",
  "name": "Instabledesign 1",
  "manifest_version": 2,
  "description": "A little design to get style of my Foxbrowser"
}