Examine source code of FeverClan Theme 1

{
  "theme": {
    "images": {
      "theme_frame": "Header.jpg"
    },
    "colors": {
      "frame": "#757575",
      "tab_background_text": "#dbdbdb"
    }
  },
  "version": "2.0",
  "name": "FeverClan Theme 1",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/30ccab577447a4fa3804b0f6926fe945db65e836b06cca59ed89810bb072da78/http%3A//www.feverclan.com\" rel=\"nofollow\">www.feverclan.com</a>"
}