Examine source code of Verwitternd

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#007a7a"
    }
  },
  "version": "2.0",
  "name": "Verwitternd",
  "manifest_version": 2,
  "description": "Created of my own artwork: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/28d74ba2ad9dcf58f610d7efc8caf471c1960c7e03b63a63830af3c7ac388a2c/https%3A//leichenengel.deviantart.com/art/Verwitternd-182233095\">https://leichenengel.deviantart.com/art/Verwitternd-182233095</a>\n\nSorry in case the quality is bad on your device, but I had to reduce the quality to match the max of 300kb file size because my Fractal files are usually very large in dpi and file size.\n\nYou can view more of my Fractal Artwork by clicking on \"View Gallery\" on the right side of the full picture. If you want to create Themes from my Art, please contact me before."
}