Examine source code of Big Wave by MaDonna

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#226173",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Big Wave by MaDonna",
  "manifest_version": 2,
  "description": "My wallpaper to match is at: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/ebb6953877056dca887b6ef0108a09a3ee494bf38071310f88e5175c6f4a03a1/https%3A//nature.desktopnexus.com/wallpaper/2166039/\">https://nature.desktopnexus.com/wallpaper/2166039/</a>"
}