Examine source code of Three buddies

{
  "theme": {
    "images": {
      "theme_frame": "Header5.jpg"
    },
    "colors": {
      "frame": "#e0d7d7",
      "tab_background_text": "#edd013"
    }
  },
  "version": "2.0",
  "name": "Three buddies",
  "manifest_version": 2,
  "description": "my photo of 3 kitties"
}