Examine source code of gothic queen

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "gothic queen",
  "manifest_version": 2,
  "description": "<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/6c12a36408ff15cff11d20765f32bcbd770ae4501b5ef7ebc439111408dccd04/http%3A//www.my-arcana.net/\">http://www.my-arcana.net/</a>"
}