Examine source code of christmas theme2

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "christmas theme2",
  "manifest_version": 2,
  "description": "<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/6eb8f01b44c19a0f07ed95917d7b16b5c3df24350cb693d599e8e8be4316a10a/http%3A//www.animatedimages.org/cat-christmas-market-360.htm\">&lt;img alt=\"animated-christmas-market-image-0001\" border=\"0\" src=\"http://www.animatedimages.org/data/media/360/animated-christmas-market-image-0001.gif\"&gt;</a>"
}