Examine source code of Wolf Sketch

{
  "theme": {
    "images": {
      "theme_frame": "wolfheaderscaled.jpg"
    },
    "colors": {
      "frame": "#ababab",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Wolf Sketch",
  "manifest_version": 2,
  "description": "First persona, just thought I'd share this...\nIf using persona plus, better sized header/footer found at:\n<a href=\"https://outgoing.prod.mozaws.net/v1/5fdcb6106eca87e4abb0faaf941813d5eb5606eba2050195d1d5efe2b0e626d0/http%3A//christohpera.deviantart.com/art/Wolf-Sketch-Persona-Header-157007383\" rel=\"nofollow\">http://christohpera.deviantart.com/art/Wolf-Sketch-Persona-Header-157007383</a> | \n<a href=\"https://outgoing.prod.mozaws.net/v1/ef14107e6d2d0469198f6f4b9c0abc182a0e3a8b933bfd1730eb2c6c8c6e4445/http%3A//christohpera.deviantart.com/art/Wolf-Sketch-Persona-Footer-157007610\" rel=\"nofollow\">http://christohpera.deviantart.com/art/Wolf-Sketch-Persona-Footer-157007610</a>"
}