Examine source code of canary cake

{
  "theme": {
    "images": {
      "theme_frame": "yelstriphead.png"
    },
    "colors": {
      "frame": "#f7edc3",
      "tab_background_text": "#403327"
    }
  },
  "version": "2.0",
  "name": "canary cake",
  "manifest_version": 2,
  "description": "Warm yellow stripes. "
}