Examine source code of Happy Sun

{
  "theme": {
    "images": {
      "theme_frame": "sundhineheader.jpg"
    },
    "colors": {
      "frame": "#49678f",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Happy Sun",
  "manifest_version": 2,
  "description": "Just wanted to see how this works. Whipped up a quick doodle and this is the result. ^_^"
}