Examine source code of deviantart_dot_com

{
  "theme": {
    "images": {
      "theme_frame": "DAPERSONA.png"
    },
    "colors": {
      "frame": "#380808",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "deviantart_dot_com",
  "manifest_version": 2,
  "description": "unleash your imagination\n\n<a href=\"https://outgoing.prod.mozaws.net/v1/e1a1e22d6b953d4620241cb05cb932010921b340cdc9b9207c0446ac78147c2f/http%3A//deviantart.com\" rel=\"nofollow\">deviantart.com</a>"
}