Examine source code of Petas.gr

{
  "theme": {
    "images": {
      "theme_frame": "petas_header.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Petas.gr",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/616ac937656b92df6f071de325ffa48ef4d13fa3faa3226a8676da4136f65bf7/http%3A//Petas.gr\" rel=\"nofollow\">Petas.gr</a> Travel Portal"
}