Examine source code of Ebb and Flow

{
  "theme": {
    "images": {
      "theme_frame": "Header.jpg"
    },
    "colors": {
      "frame": "#333333",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Ebb and Flow",
  "manifest_version": 2,
  "description": "Modified under the rights of the Creative Commons license from an original work by Chard6 (<a href=\"https://outgoing.prod.mozaws.net/v1/59d04b246c7e56a98e5998890eec2431846e8cb231ae9e01f06f89e18018f17b/http%3A//www.getpersonas.com/en-US/persona/120312\" rel=\"nofollow\">http://www.getpersonas.com/en-US/persona/120312</a>).\nI have shifted the position of the \"waves\" to a less distracting area, moved the entire design up two pixels and removed the Firefox logo. \nThanks are due to Chard6 for his superb submission, without which this Persona would not exist."
}