Examine source code of Gear Head Dark

{
  "theme": {
    "images": {
      "theme_frame": "GearHeadDarkH.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Gear Head Dark",
  "manifest_version": 2,
  "description": "Made with the free vector editor \"Inkscape\" just for fun and figured I'd share it.\nwww.jphphotography.ca"
}