Examine source code of gather.battlenet.gr

{
  "theme": {
    "images": {
      "theme_frame": "-1.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ff0000"
    }
  },
  "version": "2.0",
  "name": "gather.battlenet.gr",
  "manifest_version": 2,
  "description": "<a href=\"https://outgoing.prod.mozaws.net/v1/a3c0bd49f33ea90f49d36ffa47491989eb949d3798219d4782ab31df61fbb446/http%3A//gather.battlenet.gr\" rel=\"nofollow\">http://gather.battlenet.gr</a>"
}