Examine source code of Lighthouse by Lucky9

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Lighthouse by Lucky9",
  "manifest_version": 2,
  "description": "Lighthouse\nImage source: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/a18be2738b01ea7e35d25205f97a1474b0483dd81177988f9532dd7b7bfc2be3/http%3A//wallpaperswide.com/portland_head_light_lighthouse-wallpapers.html\">http://wallpaperswide.com/portland_head_light_lighthouse-wallpapers.html</a>"
}