Examine source code of Rainbow Wood

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#59002e"
    }
  },
  "version": "2.0",
  "name": "Rainbow Wood",
  "manifest_version": 2,
  "description": "<b> Pattern by freeflight &amp; Anomalin @ <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/7aaa1a41ad811447e353048e9834ae823bad5f90522eec0ca34619240118993c/http%3A//colourlovers.com\">colourlovers.com</a> <b></b></b>"
}