Examine source code of Tea Time2

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Tea Time2",
  "manifest_version": 2,
  "description": "<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/fd1b8c3ed85210a410a50ccf62064adecc848ebd507a7c9a931c0455dab07c2c/https%3A//www.youtube.com/watch%3Fv=jmaPRC-lUho\">https://www.youtube.com/watch?v=jmaPRC-lUho</a>"
}