Examine source code of modified-culture

{
  "theme": {
    "images": {
      "theme_frame": "modifiedculture.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#c92096"
    }
  },
  "version": "2.0",
  "name": "modified-culture",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/776d6f097beef6c0856412d1d61f0eb4ef5415aaa9dcffd4383cd73ca306d266/http%3A//www.modified-culture.com\" rel=\"nofollow\">www.modified-culture.com</a>"
}