Examine source code of ichan create

{
  "theme": {
    "images": {
      "theme_frame": "buatfirefox.jpg"
    },
    "colors": {
      "frame": "#cfe810",
      "tab_background_text": "#e1f508"
    }
  },
  "version": "2.0",
  "name": "ichan create",
  "manifest_version": 2,
  "description": "try it"
}