Examine source code of iFortal - Solucoes Web

{
  "theme": {
    "images": {
      "theme_frame": "Persona-Ifortal.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#181e23"
    }
  },
  "version": "2.0",
  "name": "iFortal - Solucoes Web",
  "manifest_version": 2,
  "description": "Tema criado para personalizacao do navegador com a marca iFortal - Solucoes Web.\n\nAcesse: <a href=\"https://outgoing.prod.mozaws.net/v1/43a8bd05fc643d0a9fb53e83b49f9d41c6fc918efac545b8e6d0be44171dd61f/http%3A//www.ifortal.com.br\" rel=\"nofollow\">http://www.ifortal.com.br</a>"
}