Examine source code of character_mm01

{
  "theme": {
    "images": {
      "theme_frame": "mm2.jpg"
    },
    "colors": {
      "frame": "#9e9e9e",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "character_mm01",
  "manifest_version": 2,
  "description": "It is an original character. His name is mm.\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/9c58bb38feb73e24593885b79a326e9daab10284a0fcd9d1858a2768562c8efc/http%3A//www.niconicommons.jp/user/263354\">http://www.niconicommons.jp/user/263354</a>"
}