Examine source code of purplesky

{
  "theme": {
    "images": {
      "theme_frame": "purplesky.jpg"
    },
    "colors": {
      "frame": "#e7f708",
      "tab_background_text": "#f2ee09"
    }
  },
  "version": "2.0",
  "name": "purplesky",
  "manifest_version": 2,
  "description": "Purplesky- tropical trees"
}