Examine source code of My Green

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#c9c1af",
      "tab_background_text": "#7d3d37"
    }
  },
  "version": "2.0",
  "name": "My Green",
  "manifest_version": 2,
  "description": "This  is a simple cool and abstract green theme for your mozilla."
}