Examine source code of Umbrella Rain

{
  "theme": {
    "images": {
      "theme_frame": "006_A_PERSONA.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Umbrella Rain",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/44ae7b60bd628ff0c3ebde3a04326ce9bac694721576a237be56ff61278cd516/http%3A//www.ymedia.tk\" rel=\"nofollow\">www.ymedia.tk</a>\n\nthanks for looking :)"
}