Examine source code of SimPress theme

{
  "theme": {
    "images": {
      "theme_frame": "simpress-top7.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "SimPress theme",
  "manifest_version": 2,
  "description": "Persona for users of SimPress site (available on <a href=\"https://outgoing.prod.mozaws.net/v1/8c67d36d9a40589efac7a9d9cfa53237ac36d38a6ea0d64332d27e2355302a61/http%3A//simpress.pl\" rel=\"nofollow\">simpress.pl</a>)"
}