Examine source code of Magical Eye

{
  "theme": {
    "images": {
      "theme_frame": "Personaeye.jpg"
    },
    "colors": {
      "frame": "#1861a1",
      "tab_background_text": "#fc1717"
    }
  },
  "version": "2.0",
  "name": "Magical Eye",
  "manifest_version": 2,
  "description": "Magical Eye by Lusete\nfor more art and information visit <a href=\"https://outgoing.prod.mozaws.net/v1/2d6c2c518f6bac25093c05ac966853ca9affad1cba434a3ea6909dcac469d56a/http%3A//www.lusete.com\" rel=\"nofollow\">www.lusete.com</a>"
}