Examine source code of Subtle Vichy

{
  "theme": {
    "images": {
      "theme_frame": "Vichy1.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#303030"
    }
  },
  "version": "2.0",
  "name": "Subtle Vichy",
  "manifest_version": 2,
  "description": "A subtle vichy texture. \n\nCredit to <a href=\"https://outgoing.prod.mozaws.net/v1/ecf25e0789de09a799cee736b4bd6e026ef2bedd1418510a0a4be19e9fd36280/http%3A//subtlepatterns.com\" rel=\"nofollow\">subtlepatterns.com</a> for the texture."
}