Examine source code of Tutorial Theme - 0000Free

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#406cb8",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Tutorial Theme - 0000Free",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/ffd487abc4de0ed85f12c751345786625aeaf546e5de7870c017e0d43c094333/http%3A//0000Free.com\" rel=\"nofollow\">0000Free.com</a> Free web hosting\nThis theme is used during tutorials"
}