Examine source code of Spirals or Stars

{
  "theme": {
    "images": {
      "theme_frame": "Header.png"
    },
    "colors": {
      "frame": "#ffaa00",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Spirals or Stars",
  "manifest_version": 2,
  "description": "A theme based on <a href=\"https://outgoing.prod.mozaws.net/v1/07d11d37e93ba500cbb0f93309902faf1d4f7bd31ec7a68ee097b8d5f2c0416c/http%3A//Developr.Tumblr.Com\" rel=\"nofollow\">Developr.Tumblr.Com</a>, featuring the spirals interlaced to produce stars. Or are they stars arranged to make spirals..?"
}