Examine source code of sonic-figure

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#cfed09",
      "tab_background_text": "#1b56b5"
    }
  },
  "version": "2.0",
  "name": "sonic-figure",
  "manifest_version": 2,
  "description": "a good theme for my sonic friends. if you want follow me ; you can follow me on my web:\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/fd716445ee072ed4b07cf271c1a8a31cd8337ebda31d6a671b93bff849ffb086/http%3A//sonicvaman.blogfa.com\">sonicvaman.blogfa.com</a>"
}