Examine source code of Three Dragons

{
  "theme": {
    "images": {
      "theme_frame": "hlava72.jpg"
    },
    "colors": {
      "frame": "#7e1180",
      "tab_background_text": "#1b0524"
    }
  },
  "version": "2.0",
  "name": "Three Dragons",
  "manifest_version": 2,
  "description": "Dragons *___*"
}