Examine source code of Iceland Ponies

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#cdd690",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Iceland Ponies",
  "manifest_version": 2,
  "description": "Stock credit: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/f6bc88cc5fa9468c9fdc55435628b1258c4f37c95720d6b97d2ff2abc11b01d2/https%3A//pixabay.com/en/users/castleguard-2970404/\">Rebekka D\n</a>"
}