Examine source code of Smiling One Punch Man

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Smiling One Punch Man",
  "manifest_version": 2,
  "description": "Image from <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/a956b26d698e1d229b507c87c13ecfc8e24c0473a9beb59e0a1ab420e5bb25da/http%3A//kuyamark96.deviantart.com/art/One-Punch-Man-Vector-565426134\">http://kuyamark96.deviantart.com/art/One-Punch-Man-Vector-565426134</a>"
}