Examine source code of Pink Swirls

{
  "theme": {
    "images": {
      "theme_frame": "swirls.jpg"
    },
    "colors": {
      "frame": "#0d8069",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Pink Swirls",
  "manifest_version": 2,
  "description": "pink swirls - very pretty!"
}