Examine source code of PinBall

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "PinBall",
  "manifest_version": 2,
  "description": "This is a <b>complete</b> theme for <b>SeaMonkey</b> - <b>not</b> for Firefox. \n\nThis is an update of Johannes Schellen's Pinball theme wich was discontinued in 2011.  The Pinball button images are propriety of Johannes Schellen.\n\nScreenshot:  <b><a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/5d3d817e87e93c6dcb9e73d05caf3f0552ea2caf22de6a078b1e50cde10bed21/http%3A//pinball.madsenworld.dk/pinball.png\">pinball.madsenworld.dk/pinball.png</a></b>\nDownload:  <b><a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/c571ab34c0fd6e8bcad952aed413f40e6666771917c54d376b1aa995666e5fec/http%3A//pinball.madsenworld.dk\">pinball.madsenworld.dk</a></b>\n\nYou <b>cannot</b> install the theme from this page. \nUse the Addons page:\n<b><a rel=\"nofollow\" href=\"https://addons.mozilla.org/en-US/seamonkey/addon/pinball-theme/\">https://addons.mozilla.org/en-US/seamonkey/addon/pinball-theme/</a></b>"
}