Examine source code of Tree Tops

{
  "theme": {
    "images": {
      "theme_frame": "TreeTopHeader.jpg"
    },
    "colors": {
      "frame": "#e8b425",
      "tab_background_text": "#fcf7f7"
    }
  },
  "version": "2.0",
  "name": "Tree Tops",
  "manifest_version": 2,
  "description": "Autumn tree tops"
}