Examine source code of Green Thoughts

{
  "theme": {
    "images": {
      "theme_frame": "gogreenheader.jpg"
    },
    "colors": {
      "frame": "#ffff8f",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Green Thoughts",
  "manifest_version": 2,
  "description": "The cause will help all of us on this wonderful planet, and make it a better place to live."
}