Examine source code of geeko

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#60b039",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "geeko",
  "manifest_version": 2,
  "description": "based on openSUSE 12.3 grow official wallpaper\n(updated: modified the colour of the font in tabs)"
}